1.HD call, HI-FI sound quality

2.Safe: allow you to stay alert and aware of your surroundings while enjoy the music,like walking, driving, shopping, runing ect.

3.Protect ears ：burden-free wearing, prevent damage to the ear canal by wearing earphone for long time. 4.Protect privacy: used bone conduction technology, no leaking voice

5.The lens and frame can be replaced,more frame options