How Do Bluetooth Bone Conduction Headphones Work and Which Brand is The Best?
Jan 04,2023 | Sylvia
Before understanding how bone conduction headphones work, we must understand some basic concepts.The first one is :what are bone conduction Headphones
As the name suggests, bone conduction headphones are headphones designed based on bone conduction technology.
Bone conduction is a sound conduction method. The vibration of the sound source drives the bone to vibrate, and then transmits the sound to the inner ear, so that the sound can be heard. It transmits sound without passing through the air and eardrum, which also enables the sound transmission way of bone conduction to clearly restore the sound in a noisy environment, and will not affect others due to the spread of sound waves in the air.
The technology of bone conduction is very mature. In the 18th century, Beethoven used bone conduction technology to hear the sound of piano performance. We all know that music genius Beethoven was deaf in both ears. In order to hear the sound, he bit the baton with his mouth and put the other end of the baton on the piano when he was playing. The vibrations of the piano are transmitted through the baton to his teeth and bones, and then to the inner ear. This method helped Beethoven to hear the sound of the piano, and he also created a large number of well-known piano pieces.
Bone conduction technology has a wide range of applications. It has been used more in the military field and hearing assistance field in the past. But in recent years, this technology has been widely used in bone conduction headphones, making this headphone a fashionable product and becoming popular.
How do bluetooth bone conduction headphone work?
The propagation medium of sound includes solid, liquid, and air. In general, there are two ways for sound waves to enter the inner ear of the human body: air conduction and bone conduction. It then travels to the inner ear via the auditory ossicles. Bone conduction is the vibration of sound waves through the bones of the head such as the skull and jaw, which transmits the sound to the inner ear. It is another very important hearing method besides air transmission. People use this method to manufacture many bone conduction hearing devices.
Traditional headphones mainly transmit sound through the air, while bone conduction headphones use the temporal bone of the head to transmit sound. It transmits sound directly to the auditory nerve in the form of sound waves, instead of passing through the air to the eardrum and then to our auditory nerve.
Currently, bone conduction hearing devices mainly include electromagnetic bone conduction headphones and piezoelectric bone conduction headphones. Electromagnetic bone conduction headphones have better working performance, but they have electromagnetic radiation, which is easy to cause harm to the user's body. Piezoelectric bone conduction headphones use piezoelectric vibrators as sounding components. When people wear it the human body is less affected by electromagnetic radiation which also has the advantages of small size and low power consumption.
Advantages of bluetooth bone conduction headphones
It does not occupy the ear canal when in use. In addition to hearing the sound in the headphone, it can also hear the sound of the outside world, so that you are not isolated from the outside world, which can ensure your safety. For example, if you wear headphones when crossing the road, you won’t be in danger because you can't hear the horn. That means if you often exercise outdoors, you can avoid dangerous situations. It allows you to listen to all directions while listening to music, protecting yourself without hindering others. Safety is the most prominent advantage of them. Because of this advantage, bone conduction headphones are very popular among sports fans.
Bone conduction headphones do not need to be tightly plugged into the ears, they are very comfortable to wear. It perfectly avoids ear pain caused by wearing in-ear earphones for a long time. The comfort of wearing is a near-perfect advantage for sports fans who need to wear it for a long time. To further improve wearing comfort, mainstream brands of bone conduction headphones also make the fuselage very light and use soft and skin-friendly materials for the fuselage surface. Companies like wissonly and Aftershokz have made great efforts in this regard.
Bone conduction headphones have another advantage: Since the headphones do not need to be plugged into the ear when worn, it is very helpful to maintain the internal hygiene of the ear. It will not cause a lot of bacteria to accumulate in the ear canal due to sweating for a long time during exercise. Compared with traditional earphones, it is more hygienic and healthy.
Of course, bone conduction headphones also have some disadvantages. For example, the sound quality may not be as good as traditional noise-canceling headphones, such as more or less sound leakage problems. These two problems are mainly caused by the sound generation principle of bone conduction headphones, and they are difficult to solve to a 100% extent. However, some excellent bone conduction headphones have made a lot of efforts to solve these two problems and they achieved good results. The sound quality of these headphones is generally very good, and the sound leakage problem has almost been solved.
Bluetooth bone conduction headphones are becoming more and more popular among young people,and more and more brands join this field.So, which brand is the best?In my opinion, those brands that have accumulated technology in this field are trustworthy.Below, I have sorted out some good Bluetooth bone conduction headphones brands, and recommend them to you. I hope they can help.
1.Wissonly Hi Runner bone conduction headphones
Reason for recommendation:
I noticed Wissonly bone conduction headphones when they were first crowdfunded online. And later, I saw that some otologists were recommending them on online forums, so I bought them. This Hi Runner is their flagship product whose overall functionality is also the most perfect. The headphone use the latest research from the Wissonly lab. It increases the vibrating area of the vibrator by 35% and optimizes the direction of sound transmission to make the sound more concentrated, resulting in a wider range and more spatial of the music. The brand claims that its sound quality is HI-FI level, and I actually tested it myself. I thought that the sound quality was very close to HI-FI level, but it did not reach this level. Of course, the current sound quality is satisfactory enough.
Wissonly Hi Runner bone conduction headphones are also equipped with a new Bluetooth 5.0 chip that has stronger anti-interference ability, that can easily cope with various complex outdoor scenes, and ensures the good mood during exercise is not disturbed by disconnection. At the same time, the stable connection also brings low latency performance, and there is no problem in listening to songs, following dramas, and playing games. What's more, they have 32G of built-in memory that can store 5,000 songs. This helps you to enjoy music when you are exercising outdoors without your phone.
In terms of comfort, the Wissonly Hi Runner performs well, it is very light, only less than 30g, and it does not feel any weight to wear. The body is made of titanium alloy which makes it have a good fit, and you don't need to worry about their falling off during sports.
The waterproof of the Wissonly Hi Runner deserves special mention, and it is IPX8 grade. It means that you can carry it underwater for up to 20 meters and still use it normally, which is crazy!
2. Philips A6606 bone conduction headphones
This Philips A6606 bone conduction headphones, with its comfortable silicone surface, is comfortable to wear. It is ergonomically designed, so that it will not fall when it is firmly worn. Its IP67-level depth waterproof standard makes you easy while sweat during daily exercise. This model is equipped with a night run lamp device, and while running at night, it can make cyclists or vehicles notice you. This is a very thoughtful design. It is equipped with Bluetooth 5.2 technology, which has faster transmission distance and lower power consumption than 5.0, but this one can't be used in swimming.
3.AfterShokz OPENRUN PRO bone conduction headphones
The body of the Openrun Pro weighs only 26g, and it adopts Qualcomm QCC3024 low-energy chip +PremiumPitch 2.0 improved double suspension vibration transmission system and suspension damping technology, CVC call noise reduction algorithm and double silicon microphone. The battery life lasts for 8 hours, and the charging method is magnetic charging. The charging interface has a liquid residue detection function to ensure that it has a good waterproof performance. Its waterproof grade is IP67, and there is no problem with normal sweat. A short period of rain can be used, but it can't be used for swimming.
4. Earsopen ss900 bone conduction headphones
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
Runner CC2 is an entry-level bone conduction headset, but its overall performance is very good. The headphone body is made of aviation grade material, which has good flexibility and is not easy to be damaged. The weight of the body is only 28g, combined with skin-friendly food-grade silica gel as the surface material, which brings a skin-friendly and comfortable wearing experience. Its waterproof grade reaches IPX6 level, which can meet the basic life-class waterproof.