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Do Bone Conduction Headphones Leak Sound and Can Others Hear The Sound from Them?

Feb 13,2023 | David

Bone conduction headphones are becoming popular among sports fans. We always see people wearing headphones that don’t have to be tucked into their ears when they are running, riding, or working out. They looks cool, they have a lot of advantages:such as safe,health,comfortable and hygienic.Of course, they also have some shortcomings. The shortcoming that we pay more attention to is the leakage problem.

Do bone conduction headphones leak sound?

It should be noted that no matter which bone conduction headphone has a sound leakage problem, but the severity is different. Some excellent headphone products have very small sound leakage problems.While using these headphones,under normal volume, with a social distance of more than 1 meter, it is difficult for others to hear the sound of bone conduction headphones. Therefore, the privacy protection of the headphones is still good, and you can use them with confidence.

From the point of view of the principle of sound, all bone conduction headphones have the problem of sound leakage. Because they rely on the vibration of the sound unit to generate vibration waves, and drive the bone to vibrate to transmit the sound to the inner ear, so that it can be heard by people. Therefore, when the headphones are working, their shells will vibrate together with the sounding unit, and the shells will drive the air to vibrate, resulting in sound leakage. For the same headphone, when the volume is higher, the sound unit vibrates more, the air vibrates more, and the problem of sound leakage will be more serious.

Excellent bone conduction headphone brands have made a lot of efforts to solve the problem of sound leakage of headphones, and mainly adopted the following methods to reduce the problem of sound leakage.

Integrated body: The headphones body is designed as an integrated body without holes, so that there is no air in the body, and the air vibration caused by the sound unit is also reduced;

Shock-absorbing design of the body: through structural optimization, the shock-absorbing function of the body is improved, and the vibration of the body caused by the vibration of the sound unit is reduced;

Inverted-phase sound wave: The anti-phase sound wave is used to cancel the sound wave of the sound leakage, thereby eliminating the sound leakage.

It should be said that their efforts have paid off. The sound leakage problem of some excellent brands of bone conduction headphones has been well resolved.

Although bone conduction headphones have the problem of sound leakage, it has to be said that they have several outstanding advantages: they allow you to keep your attention on the ambient sound while listening to music, which is very safe; they will not hurt your ears, can Keeping the ear canal hygienic and more. These advantages are why they have become popular.

These advantages are determined by their working principles.

How do bone conduction headphones work?

How can you hear the sound without putting headphones in your ears? Many people have such questions. To understand how bone conduction headphones work, let’s first understand how humans recognize the sound.

You may think that humans hear sounds with their eardrums, but this is not accurate. The sound we normally hear is vibrations in the air entering the ear and hitting the eardrum causing it to vibrate. Humans perceive the vibration of the eardrum through the cochlea located deep in the ear and transmit this information in the form of sound to the brain to perceive sound. In other words, humans perceive sound through the cochlea. From this perspective, humans hear sound through the cochlea.

Bone conduction headphones make good use of the above-mentioned mechanism of the cochlea to perceive sound. They apply vibration directly to the facial bones, and the facial bones transmit the vibrations to the cochlea, where the sound is perceived by the cochlea.

We can compare the difference between bone conduction and traditional sound transmission paths to understand more deeply how bone conduction headphones work.

Bone conduction path: sound wave,cranium,bone labyrinth,inner ear lymph,Spiral organ,auditory nerve,cerebral cortex auditory center.

Traditional sound transmission path (i.e. air conduction path): sound wave,auricle,external auditory canal,eardrum,auditory ossicles,vestibular window,internal and external lymphatics,spiral organs,auditory nerve,cerebral cortex auditory center.

We can see that the sound transmission process of bone conduction headphones does not need to pass through the eardrum, its sound transmission path is shorter, and it will not damage the eardrum.

A large number of headphone manufacturers have joined the field of bone conduction headphones. Which one is the best? I will give you some recommendations

1. wissonly Hi Runner bone conduction Bluetooth headphones

Reason for recommendation:

Wissonly bone conduction headphones are recognized by the market with its leading bone conduction vibrator technology. Their team has accumulated more than 10 years in the field of bone conduction technology, which has been affirmed in terms of product quality and hearing protection effect.

Wissonly Hi Runner uses a large-size bone conduction vibrator, which increases the vibration area by 35%. When you wear it, the diffusion direction of sound quality will be more comprehensive, the coverage will be wider, and the sound will be more stereo. Its sound will be deeper in low frequency and more transparent in high frequency. They have also made a lot of efforts in the technology of sound leakage reduction, including the built-in reverse sound wave system and the all-closed-body design, thus reducing the sound leakage by 90%.

It is comfort: Wissonly Hi Runner’s whole body is made of high-tech and low-sensitivity silicone, which contains no chemical components to avoid allergy. The overall touch is as silky as baby’s skin, which can avoid uncomfortable situations when worn for a long time.

Wissonly Hi Runner bone conduction Bluetooth headphones are also equipped with a new Bluetooth 5.0 chip, which has stronger anti-interference ability, and can easily cope with various outdoor complex scenes, so as to ensure that the good mood during exercise will not be disturbed by disconnection. The stable connection also brings ultra-low delay performance. Listening to songs, chasing dramas and playing games meet all the daily demands for headphones.

2.Philips 7607 bone conduction headphones

Reason for recommendation:

Its sounding unit adopt a large-size vibrator of 17mm, which makes it have the effect of high, medium and low triple-frequency balance in sound quality performance. The low-frequency dive is sufficient, the medium and high frequencies are clear and not harsh, but there will be some missing sounds. It is also equipped with an intimate LED night run lamp at the rear end of the body, which can turn on the LED by turning on the key three times in a row. It also has three modes, which is suitable for wearing at night, so that people around it can perceive their own position and ensure their own safety factor to a certain extent.Its IPX6 waterproof rating is not afraid of sweat in daily wear.

3.AfterShokz OPENRUN PRO bone conduction headphones

Reason for recommendation:

Openrun PRO bone conduction headphones do not need to be plugged into the ear when worn. With minimal impact on the ear canal, they will not harm the ear canal and eardrum. They are also equipped with the newly upgraded PremiumPitch 2.0+ technology, which has a high degree of sound restoration and better sound quality. They also use Bluetooth version 5.0, which improves the stability of Bluetooth connection and brings lower power consumption. But this one does not support MP3 mode.

4. Earsopen ss900 bone conduction headphones

Reason for recommendation:

Earsopen SS900 is different from other bone conduction headphones in that its appearance is a unique “T”-shaped structure, which can be clipped on the ear. It has high waterproof performance, its IPX7 waterproof grade can be fully qualified for wearing in any scene except swimming, and there is no problem if it is soaked in water for a short time. The battery life is 8 hours, and it is also equipped with a fast charging mode, which can achieve the effect of charging for ten minutes and listening to songs for two hours.

5.Nank Runner CC3 bone conduction headphones

Reason for recommendation:

Its headphones’ body is designed with a titanium alloy rear-hanging body, which is light in weight, and it doesn’t feel heavy when worn. The ear-hanging design is also very convenient to wear, so you don’t have to worry about falling off. The whole headphone adopts seamless design, and even the earphones are wrapped in silica gel, which can greatly reduce sound leakage. As magnetic charging is adopted, after each use, it is only necessary to put the magnetic suction head at the buckle position of the headphone. Compared with the previous products, the sound quality is obviously improved, but it still needs to be improved. Those who have low requirements for sound quality can choose it.

Consider three key points of sound quality, sound leakage reduction and comfort,wissonly and Aftershokz are the best of the above five bone conduction headphones. If product parameters and cost performance are considered, Wissonly performs better.