Model NO：B122
1.ABS+Metal
2.Speaker：φ13，16Ω
3.Chipset:JL6976D
4.Working Distance:10 meters radius
5.Built in Li-Battery:25mAh/earbud,200mAh case
6.play/plause，decreased/Increase
7.Music time :4hours
8.Charge Time: 2h
9.Standby Time :90days