The first point is the adaptation problem. The phonation principle of bone conduction earphone relies on its two phonation patches closely attached to part of the skull near the ear to transmit the vibration inward to the inner ear lymph, auditory nerve and other structures, so as to play a phonation role, and this clamping is generally achieved by the annular elastic metal between the two phonation parts. The skull shapes of different people are different, which leads to the problem that many people can not achieve the close effect after wearing it and affect the sound volume.
The second point is the problem of sound leakage. As mentioned above, the vibration of the sound patch will inevitably lead to the vibration of the earphone body itself, drive the vibration of the surrounding air, and lead to sound leakage. Although this varies depending on the volume of the headset, it is inevitable in itself, unless the shell can be isolated from vibration, which has not yet achieved any theoretical breakthrough.
The third point is the sound effect. Compared with the traditional earphone, it lacks the reflection of sound in the ear canal, and keeping the ear canal open will allow various sounds of the environment to enter, resulting in the sound of the earphone is different from other types of earphones in both size and quality. Plugging your ears can solve these two problems to some extent, but if you're plugged, why not buy an in ear headset directly.
In other words, bone conduction headphones have and only one advantage: they can keep your ear canal open while you receive a sound. However, it is useful in many cases. For example:
1. Outdoor sports such as running and mountaineering. Of course, ordinary headphones can also meet the needs of listening to songs (sound quality is also better), but because of the characteristics of bone conduction headphones, you can also listen to the ambient sound when listening to songs. You can hear the whistle of bicycles / electric vehicles and safety reminders of passers-by or peers when running. Such sports are relatively safer.
2. It's easy to understand when driving. You can also hear external sounds such as sirens when making a phone call. Naturally, it's safer.
