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.With microphone for business or network class ect , HI-fi call or talking