1, All new Bluetooth chip 5.0 version，with skyline design，steady to connect.
2，Instantly connected when you use it，no waiting for movie and music.
3，Soft ear hanging type，easy to wear and steady to use.
4，Battery box display light，easy to check the rest power.
5，Super standby time，single battery for 6 hours music，400 mah battery box，for 3 times earphones using，
6，easy to adjust，pause，play，next and last，volume up and down