How to Use a Walkie Talkie Headset

The basic functioning of walkie talkie headsets or two way radios is similar to standard radios. They receive RW or radio waves over the air. Once radios have received the radio waves, they convert it into sound. However, two way radios also convert sound to radio waves and transmit it back to another receiver. In simple words, these special types of radios can receive and transmit a radio signal simultaneously. Moreover, such radios use two different radio frequencies. This ensures that they can receive and send signals at the same time.

Most of the two way radios in modern times also allow scanning. Through scanning, a user can easily check if anyone is sending a transmission on a particular frequency. If the radio which is being used detects a private line tone, it will stop scanning and lock on that particular channel. This will allow the user to speak and transmit on the same frequency. As mentioned earlier, modern radios allow a person to use multiple channels. However, a walkie talkie headset should be able to generate and transmit radio waves in many different frequencies. All the frequencies should have minute fluctuations with each other.

Applications Uses of Walkie Talkie Headsets

These special type of radios have always been in demand even with all the mobile phones and laptops. Such radios facilitate easy accessibility and instant communication. Moreover, you can communicate with a bunch of people at the same time. With such a radio, you don’t have to call everyone individually and spend a lot of your hard-earned money.

These radios can be used for many different purposes. They are often used in public safety, recreation camps, military training and other businesses. Moreover, they can also be used as toys for children. 2 way radios come in many different designs at affordable prices.

These type of radios can also be used in the medical industry. They can be quite useful in admitting patients or attending to people in emergency waiting areas. They also come in handy with outpatient clinics, pharmacies, and surgeries. Such radios can also be used in food industry. They can be used by waiters, kitchen staff and delivery staff in restaurants and so on.

Every person finds it easy to use these radios. Moreover, they are not as complex or difficult to use as mobile phones and other such communication devices. A walkie talkie headset is always the best option to communicate at work, play or home. Such radios can be used in many different situations. Even the most popular communication devices can not challenge the ease of use associated with such radios.

Veteran Stage, Screen and Star Trek Actor Leonard Nimoy Passes Away, Aged 83

Veteran actor and director Leonard Nimoy has passed away aged 83.

The actor, who was best known for his portrayal of the half-Vulcan science officer Mr. Spock from the Star Trek franchise, was also notable for directing two of the Star Trek movies (the third and fourth instalments, respectively), as well as the popular 1987 comedy Three Men And A Baby.

Tributes to this iconic TV and film personality have flooded in from all angles, from Canadians defacing their $5 banknotes by ‘Spocking’ them, to a unique and exceptionally touching tribute from astronaut Terry W. Virts, who took a photo of a Vulcan salute given whilst aboard the International Space Station, just as the vessel passed over the actor’s home town of Boston, Massachusetts.

Further tributes from Nimoy’s colleagues in the arts and entertainment industries, and elsewhere, have been touching and, at times, surprising.

Long time co-star William Shatner (who portrayed Captain James T. Kirk in the original Star Trek series, as well as 7 of the related feature films), said of Nimoy “I loved him like a brother. We will all miss his humor, his talent, and his capacity to love.” George Takei, also a Star Trek co-star, called him not only an “extraordinarily talented man” but also noted that he was “a very decent Human being”.

US President Barack “I loved Spock” Obama said of Nimoy that he was, “a lifelong lover of the arts and humanities, a supporter of the sciences, generous with his talent and his time.” Such an admirer of Nimoy’s was the US President, that when they met in 2007, Obama actually greeted him with a Vulcan salute.

Astronaut Buzz Aldrin, the second man to walk on the moon, praised Nimoy for making “the journey into the final frontier accessible to us all”.

Fellow sci-fi Actor Christopher Judge, whose film credits include The Dark Knight Rises, but who is most famous for his portrayal of Teal’C in TV’s ‘Stargate SG-1’ Tweeted, “RIP Mr Nimoy. I hope my eyebrow made you proud. It was a ten year homage to you sir. You are my hero. Indeed”

The flood of tributes directed at Nimoy’s passing not only reflect his status as an icon of television and film, but also his generosity of spirit.

In 2014, actor Walter Koenig, who played Pavel Chekhov in Star Trek, revealed that Nimoy had personally appealed to the show’s producers to have African American actress Nichelle Nichols’ pay raised to equal that of co-stars Koenig and George Takei, which they then did. Nimoy also refused to voice the character of Mr. Spock in Star Trek: The Animated Series unless the producers first hired Nichols and Takei, who had not been cast at that time. For this, and many other acts of kindness on set, ‘Star Trek’ creator Gene Roddenberry was known to refer to Nimoy as “the conscience of Star Trek”.

Speaking following her long-time colleague’s death, Nichols, 82, said, “His vision and heart are bigger than the universe. I will miss him very much and send heartfelt wishes to his family.”

Away from Star Trek, Nimoy was also notable for his occasional TV appearances in The Simpsons and Futurama, as well as his hosting of paranormal series In Search Of… and his recurring role in Mission: Impossible.

Nimoy also appeared in small parts, or Guest Star slots in iconic US shows such as Dragnet, Wagon Train (which is ironic, as Trek creator Gene Roddenberry originally pitched his show as Wagon Train to the stars!), Bonanza, Columbo Rawhide, The Man From U.N.C.L.E and, more recently, Big Bang Theory.

Other fan-favourite credits include his voicing of the character Galvatron in the cult 1986 animated feature Transformers: The Movie and his performance in 1978’s critically-acclaimed Invasion of the Body Snatchers re-make.

Early in his career, Nimoy also enjoyed a small role in the 1954 science fiction movie Them! which has since come to be viewed as a classic creature feature.

Leonard Nimoy was also a noted stage actor, appearing in plays such as The Fiddler On The Roof, an adaptation of Ken Keseys novel One Flew Over The Cuckoos Nest (in which he played McMurphy), Sherlock Holmes, The King And I, My Fair Lady, Equus and Shakespeare’s Twelfth Night.

He also wrote, directed and starred in Vincent, a play based on the life of Vincent Van Gogh, which he later published in book form.

Away from acting completely, Nimoy was a qualified pilot, a published photographer and sometime musician. He could also read and speak fluent Yiddish. He was also active in several charitable organisations, including the American Cancer Society, the American Foundation For Equal Rights and most famously, the Nimoy Foundation, which was created to “encourage, recognise and support the work of artists” by granting money to aspiring creators.

Nimoy, also a successful author who published a two-volume autobiography beginning with I Am Not Spock and ending with I Am Spock, was also known as a poet, publishing several volumes throughout his later life, some of which also included his photography.

It is fitting, then, that Leonard Nimoy’s final words to his many fans were warm and poetic. Just a few days before he died, Leonard left this message on his Twitter page, “A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP.”

Leonard Nimoy was more than just a legendary TV and film actor; he was a sweet and noble soul. An artist, an inspiration and an ever-popular presence in any role he performed, be it as an alien explorer, a husband and father, or even a grandfather. LLAP.

Where Are Sepura Radios Used?

For people who are curious where Sepura radios are used, then this article is for you. Sepura is a highly respected company that designs, manufactures and sells radio technology. However, the company is known for providing accessories, like a Sepura radio earpiece to radio networks. The company has gained a reputation to supply radios that are highly secure, feature-rich and durable. In fact, with these so many features, the only real question is – in which situations do Sepura radio are not suitable? The answer is – hardly. Nevertheless, this article is going to enumerate a few popular uses for Sepura radios.

Public Safety

One of the most common uses for Sepura radios is in the field of public safety. There are plenty of reasons for this, but the most compelling one is because of the Sepura’s mobile gateway technology. Because of such technology, officers in public safety will be able to communicate with each other no matter the location, even for “dead spots. Sepura radio also comes with a one-of-a-kind noise suppression technology. It’s so good at it that even with wailing sirens, you can still hear crystal clear audio. However, if you really want to block-out all the background noises, then Sepura radio earpiece can help you with that.

Seupra also provides radio technologies that are all designed to streamline and increase the functionality of the communications like allowing real-time information sharing with emergency services, the control room and colleagues; also, Sepura provides apps that make using the technology easier. The ability of Sepura radios to withstand a heavy beating makes them very ideal for tough and disaster scenarios. Lastly Sepura radios come with a Man-Down feature, which provides critical help for any officers that might need backup or assistance.

Oil And Gas

Another popular use for Sepura radios is in oil and gas industries, especially offshore installations. These kinds of work environments are considered as “high risk”, thus worker safety of utmost importance. Therefore, accurate and clear communication is crucial for the safety of all the workers. Sepura radios offer the one of the best radio communications and technologies to provide that another safety layer.

The notable safety features are the Lone Worker and Man-Down. These features are especially designed to ensure safety of the workers and provide immediate help if the situation arises. The radios and accessories are designed in a way so that it can be easily operated even if the user is wearing thick gloves. Sepura radios also feature real-time information authorization access to different areas. This helps protect assets and ensure information security. Also, Sepura radios come with an app specially designed for oil and gas environments as it helps in reducing incidents, liability exposure, promoting safety and full audit-trail.

Sepura is a company that designs, manufactures and sells radio and radio based-technologies from handheld devices, networks to accessories, like the Sepura radio earpiece. Because of the many features, their radios are extensively used in different locations, industries and agencies. The company has put a lot of effort to put features that ensure safety and clear communications, thus it has earned a place in public safety and oil and gas industries.

How Does Spy Earpiece Work?

The spy earpiece is a gadget of the future that facilitates our lives. With the spy earpiece invisible communication is performed in most troublesome situations when cover assistance is necessary.

The main feature of the spy earpiece is its complete invisibility. First of all, the spy earpiece goes in beige hue that is very close to skin color. So when you insert it into the ear, nobody can even notice it. Besides, the spy earpiece can boast of super tiny dimensions that ensure absolute invisibility of the gadget when it is in the ear.

The good news is the spy earpiece is available on the market in diverse gadget sets. The most popular of them are Bluetooth Set, Watch Set, MP3 Set and Glasses Set. Each one of the sets listed above has an in-built transmitter and a microphone (in the loop for Bluetooth and MP3, in the bow of the glasses and on the reverse side of the watch). Thanks to the transmitter, the gadget gets connected to the cell phone. And thanks to the sensitive microphone your partner will hear your every word even if you whisper. So, as you can see the spy earpiece set consists of the transmitter with an embedded microphone and a spy earpiece with a battery.

It is pretty easy to use the spy earpiece. What you have to do is the following sequence of steps:

· Put the transmitter. If you use the Bluetooth or MP3 spy earpiece set, you are supposed to put on the loop round your neck. Make sure that the loop is properly hidden under your clothes. For Spy earpiece Watch set you put on the watch on your wrist, and for Spy earpiece Glasses set – just use it like ordinary glasses.

· Insert the battery into the spy earpiece. Every set comes with a detailed guidance for that, so don’t be afraid of doing something wrong. Anyway, if the quality of sound is unsatisfactory, try to change the position of the battery.

· Put the spy earpiece into the ear. Here you should remember that you always have to clean ear canals beforehand. Otherwise, the spy earpiece filter will choke up with earwax and sound will deteriorate significantly. In the worst case the spy earpiece will fail to work.

· Make a call. When you are ready with preparations just make a call and put the cell phone into your pocket. You won’t need it any more. Now the covert communication is established. You can hear what your partner is saying.

· Pull the spy earpiece out. This is very easy to do thanks to a special ejection cord every spy earpiece has. You can see it in any picture.

· Take out the battery. Be careful about pulling out the battery. You have to do it only with the help of a paper pin so that not to damage the spy earpiece. In case you won’t take it out, the battery will discharge.

With the help of the spy earpiece you will never feel embarrassed and confused when speaking in public, writing a test, having an interview or taking an exam. The spy earpiece will help you to feel confident and be successful.

Source – http://osanellona.hubpages.com/hub/How-Does-Spy-Earpiece-Work

What Type Of Kenwood Radio Earpiece Should You Use With A Kenwood Radio

Although there are multiple types and designs of Kenwood radios out there, there are only two earpiece connectors compatible with these radios. Kenwood has been able to design their earpiece connectors in such a way that they are compatible with all their vast types of radios. A large percentage of Kenwood radios utilize the 2 pin earpiece connector. Among the most popular radios using the 2 pin earpiece connector include TK3000 and TK3300. The difference between the two-pin connector and the multi pin connector is straightforward. The former features two pins while the latter features multiple pins. However, their performance may not be the same depending on usability and the type of Kenwood radio.

The Two-Pin Earpiece Connector

The earpiece of the Kenwood 2 pin connector is featured by an incredible in-line push-to-talk button (PTT) with an in-built microphone. In addition, it comes with a complete clothing clip and a surveillance acoustic audio tube. This Kenwood earpiece connector can be used with most of the Kenwood radios and it normally sells out at a fair price.

This Kenwood radio earpiece connector is Kevlar reinforced for added security. It also features a secure fit tube connector as well as the lapel clip button. These features integrate themselves easily thus ensuring that the final sound output is of high quality. They are also designed with hi-tech microphones which help in reducing the noise level. Unlike other connectors, its wire PTT (microphone) and acoustic tube are separate. This is meant to reduce the amount of vibrations and echoes produced which would otherwise compromise the sound quality.

When it comes to style, the Kenwood radio earpiece connector is a RoHS compliant connector which has the ‘Over the ear’ FBI style acoustic tube which helps in monitoring sound levels. When you see that the plugs have worn out, there is no reason to worry because these pieces feature replaceable mushroom plugs. This is a changeable earpiece connector which allows you to change the connector to the accessory available. Apart from being compatible with Kenwood two-pin, it also works well other devices such as Motorola 2 pin and Icom 2 pin.

The Multi-Pin Earpiece Connector

The Kenwood multi-pin connected earpiece is a unique and tech savvy type of earpiece. But the earpiece is the same to the 2 pin connected earpiece in other areas. For example, both of them share very important features crucial to the audio type produced. Some of these identical features include an in-line PTT button, the surveillance acoustic tube and the clothing clip. When it comes to its value, it is a little bit pricy than the two-pin version.

The Kenwood Radio Earpieces

The performance and aesthetics of every Kenwood radio earpiece can be fostered by spending a little bit more on optional features such as the ‘swivel’ ear loop. Also, you can enjoy better use and comfort by including a steel clothing clip that reduces noise. Kenwood composes their earpieces from high quality cables featuring a toughened surface. The durable surface protects the cable from accidental strain and offers exemplary cushion to wear and tear. These pieces are lightweight allowing them to be carried and used in wherever you travel. They have been designed to withstand consistent strains common with all earpieces making it easier to be used in any environment.

Actually, the types of connectors which are compatible with Kenwood radios are limited compared to its counterparts. Nevertheless, the Kenwood two-pin and multi-pin connectors provide an excellent performance in all Kenwood’s radios making other connectors of no importance. But some people would say it is worth trying using other connectors to taste the difference. Kenwood radio earpieces consist of polycarbonate microphones which cushions your ears from unexpected high sound levels. When the acoustic tube gets damaged it can be easily replaced ensuring that communication remains uninterrupted. Also, the button or the controller is strategically placed allowing easier management of communication.

Most of Kenwood 2 way radios may only be connected by the two varieties of connectors. Thankfully, their equipment is among the best and it can hardly be rivaled. If you would want to have a Kenwood radio for your company, it is futile searching other compatible connectors because the aforementioned two works superbly. Many companieskenwood because of these hi-tech unparalleled features. Remember that, to gain advantage of uninterrupted communication, safe audio output and additional exclusive capabilities you will have to consider a good earpiece connector for your radio.

What Do You Do With A Radio Earpiece?

What is a radio earpiece? An earpiece as the name suggests is a piece for the ear that can either be put inside the ear, covering it or suspended next to the ear. Its main function is to transmit sound signals converted from electronic waves. Earpieces can either be wired or wireless and with a variety of designs as well.

Some of its designs and features

Radio earpieces are convenient; especially where the user is constantly on the move. They are stylish and whether they have a cord or not are still presentable and handy. They too have special microphones that enable two way communications. A light inline push to talk button is as well present and it can be detached or attached to the earpiece.

You can have one that is over the ear that is usually quite fitting. It can either be circum-aural whereby it covers the entire ear and is usually large or supra-aural which only fits on the ear without surrounding it. For these radio earpieces to be of good quality, the material needs to be flexible to reduce chances of breakage.

Other features of the different earpiece designs include having reinforcements aimed at making them more secure. You can also choose to have a wireless or corded radio micro phone that works just as well. Some of the covert earpieces will come with their own separate cables of different lengths and easily adjustable volumes.

An earpiece that is fitted inside the canal of the outer ear can also be referred to as an ear bud. A good radio ear bud will not have any negative effect in your ear functioning. It also needs to be comfortable for the wearer.

The one with a sound tube connector is even more secure and makes a perfect fit into the ear. The radio earpiece will also come with wire pieces if one decides to use them. One can in addition have more than one connector with a single radio earpiece. These acoustic tubes will also come with mushroom replacements.

An earpiece worn inside the ear canal will obstruct external sounds unlike the ear bud. It is also possible to have a radio transmitter over the ear that ensures that you get clear and quality sound without influence from the noise in the background. The microphones are also able to reduce the sound in the environment and focus on what needs to be transmitted. Over the ear earpieces come in a number of interesting designs such as the D shaped and the G shaped radio earpieces which are especially favourable if the earpiece is being used by more than one person. They are not only sanitary for sharing but comfortable too.

Advantages of covert radio earpiece

Sometimes it will just seem like one is simply listening to their radio but the earpiece is a great communication tool as well. Most of its advantages are drawn from its unique features.

A radio earpiece comes in handy especially because if it’s small size and its hidden nature. You can easily keep your conversation over the radio private and no one will even know you are on it. This is especially when the information being passed is on a need to know basis.

This makes it the earpiece appropriate for those working under cover, security agents, and police officers or even by the government. It is also good for any other occupation or activity that needs a high amount of secrecy or those involving investigations. Another important feature of the earpiece is its ability to enable free flow of information within that particular time. This communication makes it very helpful in such circumstances when one needs to be regularly updated while performing a particular task. This can be because they need to be given instructions or need to be informed about the progress of something.

However, this in combination with the private and convertproperties of the radio earpiece also makes it the perfect device for more sinister motives such as illegal spying or cheat in a game or even a test. On the positive side, this communication is extremely helpful in public speaking when one needs some pointers while on stage or in front of an audience without having the listeners know about it.

Being hands free and portable makes it possible for them to be used in occupations where holding a radio to communicate is not an option. This is for instance in works involving heights or need a lot of precision such as engineering or doing a delicate electrical project.

The Motorola DP1400 – The Most Efficient 2 Way Radio

The DP1400 is an affordable, simple and portable two-way digital/analogue radio, which connects your workforce efficiently. Moreover, it has the flexibility to grow and expand with your business. This exceptional device combines the best features of two-way radio with the latest digital and analogue technology.

The Motorola DP1400 is an ideal choice for any individual who wishes to stay connected. This device is compatible with all the MOTOTRBO radios. It offers outstanding coverage, superior audio quality, long battery life and other benefits.

The company even offers the analogue only DP1400 model. It provides you with excellent voice communications. The device provides you with a way to clear and crisp digital voice communications whenever you’re ready. You will just need a basic software upgrade.

Regardless of your needs, the Motorola DP1400 provides you with a reliable, simple and cost effective communication solution. This will help you workforce connect, collaborate and coordinate to enhance productivity, efficiency and accuracy. Easy to use voice communication will make sure everything is done right the first time.

Key Features and Specifications

The frequencies of the device are UHF (403-470MHZ) and VHF (136-174MHZ). It’s available on 16 different channels. In the first look, you’ll notice a textured, large push-to-talk button. This makes it easier to use the device. There are also 2 programmable buttons to provide you with more convenience, and enhance operator efficiency.

A tricolor LED is available for visual feedback on operation status. You can also benefit from digital emergency via programmable buttons. This ensures rapid response from the workforce to critical incidents.

With sophisticated emergency calls, you can ensure the safety of your employees. The DP1400 also allows easy to use and quick group call capability. Moreover, PTT ID ensures system discipline and improved communications efficiency.

With the elegant channel searching schemes, you can ensure all the calls are received the first time. You also benefit from other key features, such as VOX capability, basic privacy, lone worker, programmable messaging capability, voice announcement of feature activation and channel changes. In addition to this, you can upgrade the software if you purchased the analogue-only model.

With all these features, you can be assured that the Motorola DP1400 will be an excellent buy. The device is available online at an affordable price. Purchasing the DP1400 on the Internet will be your best choice. With this device, your workforce will be more productive and efficient. Moreover, you will also be able to reap other benefits, including improved safety, privacy and communications. The Motorola DP1400 is an excellent choice for every business.

How Many 2 way radios Can Run on one Channel?

Theoretically, you can use an unlimited amount of walkie-talkies on the same channel (although in practice you might experience a few problems if you took that suggestion literally). Basically, there isn’€™t really a set limit. You could use as many as you like provided they are set up correctly. Anybody set to the right channel and in range at the time of transmission would then be able to pick up the signal and respond to it.

Most radios have access to 8 channels. These channels each have 38 separate €˜identification tones€™. The user sets his/her channel up with the desired tone and then only other users who know the channel/tone will be able to hear the transmissions. As a result, there are, in any given area, about 304 different combinations, so signal interference is unlikely to affect you.

Please do not interpret this answer as saying that your radio has access to 304 possible channels. It does not. It will likely only have access to 8. Some less reputable manufacturers tend to falsely imply access to 304 channels; this is simply not the case. You will have access to 304 possible tone/channel combinations, thata€™s all.

To better explain the CTCSS codes and how they work; we’€™ll include a little information from Amherst.co.uk€™s FAQ page.

€œCTCSS stands for “Continuous Tone Coded Squelch System”. These codes are also often called “Privacy codes” If a CTCSS tone is selected; a CTCSS sub-audible tone is transmitted along with the regular voice audio by the transmitting radio. The receiving radio, set to the same CTCSS tone, will only receive audio if it contains that sub-tone. Interference from other users on the same frequency is therefore rejected (unless they are also on the same sub-tone). This is a way of allowing groups of users of walkie-talkies on the same channel to avoid hearing messages from other nearby usersa€.

So, in conclusion, you can probably use as many walkie-talkies as you like on the same channel. As long as the units in question are of the same type (either VHF or UHF) and have the same CTCSS setup, then you simply shouldn’€™t have a problem. You also shouldn’€™t suffer from signal interference due to other users (although you may still experience signal loss/interference/degradation from other sources). We have talked about combating signal loss elsewhere, so please see the other questions if you have any problems in this area.

SOURCES

http://www.amherst.co.uk/walkietalkie/walkie-talkie-radio-faq-basics.htm

http://www.homephonesonline.co.uk/information/qa-walkie-talkies.htm

What Is an Earpiece?

This was originally posted on this website, credit should go them as this is a important article.

Broadly speaking, an earpiece refers to anything that functions by either covering the ear, or hanging near the ear. In this broad category are the parts of an eyeglass frame that extend over the ear, and any material specifically designed to fit into the ear and block off the entry of sound or water. The most common meaning of an “earpiece” however is an electronic device that converts electronic signals into sound waves, and directs them into the ear. In this context, the earpiece can also be called an electronic-acoustic transducer.

Originally, the earpiece was the only way of listening to electronically-generated audio signals. Thereafter, amplifiers were developed, and the role of earpieces became more a matter of personal preference than necessity. Nowadays, earpieces are used for convenience — where privacy is desired, or where mobility is important. Depending on its design, an earpiece can also be variously known as headphones, ear buds, stereo phones or headsets.

what is an earpiece? Earpieces can be organized broadly into two categories — wired earpieces and cordless or wireless earpieces. The wireless types use either radio waves or infrared signals to connect to the signal sources. Earpieces for CD players, computers or mobile phones are some examples. A signal transmission link is used, like Bluetooth® or Wi-Fi.

The wired earpiece has to be physically attached to a signal source. To facilitate this, jacks at the end of the cords are inserted into the signal source. Jack sizes have been standardized, and the most common size is the 3.5 millimeter (about 0.2 inches) that was brought into the market by the Sony Company in 1979. The much older, 1/4 inch (about 6.4 mm) jack is now used only in professional equipment. When wiring up the stereo jacks, the tip is always the left channel, the portion in between is the right channel, and the outer sleeve is the ground.

The use of ear buds has a profound impact on how one perceives sound. This is because an earpiece feeds the sound directly into the eardrums, without the normal acoustic contouring by the listener’€™s head and outer ear that normal loudspeakers give scope for. Lacking these spatial references, the brain then imagines the sound to be in a straight line within the head and between the ears. This strips the sound of its 3 dimensional effect, otherwise produced by the normal loudspeakers.

From their shapes and sizes, earpieces can be placed into four categories. The circum-aural types have large pads that surround the outer ear. They are most commonly used in recording studios. The supra-aural headphones fit just over the ear, without fully surrounding it. Ear buds are designed to fit inside outer ear’€™s canal. However, they don’t fully cover the canal, and exterior sounds can still be heard around them. In contrast, canal phones, the fourth category, fit snugly into the ear’s canal, and effectively block off the external sounds.