How Do Wireless Bluetooth Bone Conduction Earphones Work and Their Safety
Apr 14,2023 | David
I am a deep user of wireless Bluetooth bone conduction earphones and I love this new product. I wear them both for running and cycling. Obviously, they’re already part of my body and give me a lot of motivation when I’m exercising. However, since this year, I have discovered some bad phenomena, that is, there are many fake wireless Bluetooth bone conduction earphones on the market. They are cheap and of poor quality. This has me stuck when it comes to gifting my girlfriend’s birthday. She thought that what I sent was cheap and inferior products, and we almost had a relationship crisis. Therefore, in this article, I want to talk about how to distinguish between real wireless Bluetooth bone conduction earphones and fake wireless Bluetooth bone conduction earphones, the principles, advantages and disadvantages of them, and so on.
How to distinguish real wireless Bluetooth bone conduction earphones from fake ones?
wireless Bluetooth bone conduction earphones rely on bones to transmit sound. Fake ones are actually air-conduction headphones that rely on air to transmit sound. There is a big difference in the way of sound transmission. Fake wireless Bluetooth bone conduction earphones (that is, air conduction headphones), emit sound from two external speakers, and the sound transmits sound through the air into the ear. Therefore, under normal social distance, the sound played by fake wireless Bluetooth bone conduction earphones can be heard by everyone, while with real ones, within the same distance, other people can’t hear the sound at all.
You can do a test and put on the headphones. If you wear real wireless Bluetooth bone conduction earphones, you will find that the sound is louder and clearer after the ears are blocked. And if you wear fake ones , the sound becomes smaller after you block your ears.
How do wireless Bluetooth bone conduction earphones work?
Let’s start with a story. Beethoven was a great composer, and he is still loved by many people with representatives such as “Fate Symphony”, “Eroica Symphony “, “Ode of Joy Symphony “ and so on. In fact, Beethoven suffered from hearing impairment in his later years. Even in this state, he continued to compose, which is a bit bizarre. How did he do it? When playing, Beethoven held his baton in his mouth and put the other side on the piano,and then hear the sound.. This was the earliest application case of bone conduction.
In Beethoven’s case, the vibrations caused by the piano as a source of sound are transmitted through the baton to the jawbone on the side of the mouth, and then from the frontal bone to the inner ear, which eventually formed hearing.
You may have found that the entire sound transmission process was the participation of solids such as batons and bones, without the participation of air and the eardrum. This seems to be a little deviated from our daily cognition. If we look through the physics books in middle school, we could know that there are three mediums for sound transmission: namely air, liquid and solid. Human bones are solids, and of course, they can also act as a medium for transmitting sound.
With the above knowledge, it would be easy for us to understand how wireless Bluetooth bone conduction earphones work.
Wireless Bluetooth bone conduction earphones are a type of headphones manufactured by using bone conduction technology. Bone conduction is a sound conduction method with bones as the medium. It converts sound into mechanical vibrations of different frequencies to transmit sound waves through the human skull, bone labyrinth, inner ear lymph, spiral organ, and auditory center.
When they work, you only need to put the sound unit close to the temple, do not need to stuff them into the ear canal. They are good to the cleaning of the ear canal, and cause no harm to the eardrum.
Are wireless Bluetooth bone conduction earphones safe?
We often hear people worry about the safety of wireless Bluetooth bone conduction earphones, but we can promise that they do not harm the human body at all.
First of all, due to the sound transmission method of wireless Bluetooth bone conduction earphones, they do not need to pass through the ear canal and tympanic membrane, which can avoid damage to the tympanic membrane. Moreover, the vibration waves of them are relatively moderate, and the impact on auditory hair cells will be less, so they are the headphones that cause the least damage to the ears.
Secondly, traditional earphones have problems with electromagnetic waves, which can cause damage to the human brain and hearing nerves. The electromagnetic waves of wireless Bluetooth bone conduction earphones are extremely weak, which is the same intensity as the electromagnetic waves existing in nature. So they will not cause damage to the human brain and hearing nerves.
Moreover, wireless Bluetooth bone conduction earphones can help avoid the dangers of wearing them. It does not need to occupy the ear canal when wearing it. In addition to hearing the sound in the headphone, you can also hear the sound of the outside world. Wearing them when crossing the road will not be in danger because you can’t hear the sound of the horn; when you are exercising outdoors, you can also avoid some dangerous situations.
It can be seen that wireless Bluetooth bone conduction earphones are relatively safe, but safety is not absolute. If you use them to listen to music at high volume for a long time, it will still cause damage to the cochlea.
In addition to safety, wireless Bluetooth bone conduction earphones have many advantages, such as comfortable wearing, cleanliness, high waterproof level, etc.
Of course, wireless Bluetooth bone conduction earphones have some drawbacks, the two most prominent being sound quality and sound leakage.Compared with traditional earphones that focus on sound quality, their sound quality is weaker, but this does not mean that their sound quality is poor. In fact, some wireless Bluetooth bone conduction earphones with better quality have very good sound quality.
Sound leakage has always been a common problem with wireless Bluetooth bone conduction earphones, mainly because the vibration of the bone conduction vibration unit drives the vibration of the headphone body, resulting in sound leakage. However, with the advancement of technology, better wireless Bluetooth bone conduction earphones do a good job in preventing sound leakage, and the problem of sound leakage has basically been solved.
There are more and more brands of Bluetooth bone conduction earphones in the market, so how to choose the right one?My suggestion is to pay attention to the two key points: sound quality and sound leakage reduction, and choose the brands with better technology accumulation.Here are five best bone conduction earphones for you all.
1, Wissonly Hi Runner wireless Bluetooth bone conduction earphones
Wissonly wireless Bluetooth bone conduction earphones, the product I use the most, is the first brand I started to contact. When they were crowdfunding online, I participated.
The sound quality is what I am most satisfied with. I am not a professional music player, but from my personal experience, Wissonly Hi Runner is the best sound quality wireless Bluetooth bone conduction earphones I have ever used. It uses a large-sized 360-degree bone conduction vibration unit, and through structural optimization, the sounding area is increased by 35%, so that the sound range is wider, and the stereo feeling and shock of sound are stronger. Its anti-sound-leakage treatment is also very good. The whole body is completely sealed, and the algorithm is optimized to minimize the leakage of sound. I have tested it myself, and at a distance of 2 meters, the volume is turned on at 60%, so I can’t hear the sound at all.
wissonly Hi runner’s body is made of memory titanium, which can self-adjust the contact area. It can ensure a good wearing experience of the earphone at any time, taking into account more users and usage scenarios.
Wissonly Hi Runner is equipped with Bluetooth 5.0 chip, and the connection is more stable. It also has IPX8 professional sports waterproof +32g internal memory to swim in the water. The battery performance is also good, and it can play music continuously for 8–10 hours.
2.Philips A8606 wireless Bluetooth bone conduction earphones
The most peculiar point of Philips is that it is equipped with LED night running lights at the rear end of the fuselage, and the A8606 is also the same. The back of both sides of the headphones has rain-shaped lights flashing, wearing it at night can make people around you alert to your location. And turning on them during exercise can improve the safety factor, and night travel can also achieve the effect of not being collided. The Bluetooth version of 5.0 can maintain the smoothness of listening to songs at a short distance, and the 13.3mm vibrator makes it have a good performance in sound quality.
3.AfterShokz OpenSwim wireless Bluetooth bone conduction earphones
This OpenSwim wireless Bluetooth bone conduction earphones, the whole body is made of titanium alloy, which is tough, durable, and can be firmly worn to fit the ears. The whole body has an integrated design, no opening design, and the waterproof performance of the body reaches IP68 grade, so it is suitable for swimming. Its sound source part adopts a long strip structure design, so that the loudspeaker has a larger surface area and higher sound transmission efficiency. With its own 4G memory, it can store thousands of songs, and its battery life can last up to 8 hours, which can meet the daily exercise demand. However, this headphone does not support Bluetooth and calling functions.
4.earsopen SS900 wireless Bluetooth bone conduction earphones
It adopts the 5.2 Bluetooth protocol, which can start automatic connection when the charging compartment cover is opened. It is low latency during use, and the anti-interference ability is also strengthened. In terms of sound quality, BoCo’s miniature bone conduction vibrator is adopted, which has good performance at low frequencies, but which has harsh noise and serious sound leakage at high frequencies. The 8G single-earphone body is basically comfortable during the whole wearing process.
5.Haylou PurFree wireless Bluetooth bone conduction earphones
Good experience, its weight is very light, weighing only 28g, and its open ear design is very safe and hygienic, which can protect the health of the ear canal . The silica gel material of its body is very comfortable, and it can be bent at will. The frame of aviation grade memory titanium wire will not be deformed, and make its service life very long.
Its IP67 waterproof grade, except when you sweat during exercise, you are not afraid of damage when you rush with water. And the charging interface adopts water-proof magnetic charging, so there’s no need to worry about water coming into the charging interface. It should be noted that it can’t be used in swimming.
There will be a little sound leakage, which may be one of its shortcomings.
The five best bone conduction earphones in 2023 have their own characteristics and can meet the needs of most people. Among them, wissonly and Aftershokz are the two brands with the best technical strength and deserve to be recommended. If you want to choose one of these two brands, I recommend Wissonly because it is more cost-effective.