2. The ear hook of the product fits the radian and adopts a soft sound guide wire, which is suitable for different ear types. It can be rotated 360 degrees and can be worn regardless of the left and right ears. 

3. The net weight of the product is 6.3g, which is small and convenient, and wearing glasses will not affect the wearing. 

4. Built-in rechargeable polymer lithium battery, which can be recharged cyclically, saving the trouble of buying batteries. The product is divided into single machine and double machine packaging. The single machine is in-line charging

 5. Imported chips, do not need professional debugging before wearing, and it is more convenient to operate by yourself. Multiple noise reduction modes can be adjusted freely according to the environment.

 6 Anti-sweat and anti-fall, durable, infinite volume adjustment, the sound volume is more optional.