1,Bluetooth version：V5.0
2,Support protocol ：A2DP,AVRCP
3,Driver ：40mm
4,Working distance：10M
5,Frequency response：20-20000Hz
6,Power: Class II
7,Impendance: 32Ω
8,Battery capacity：250mAh
9,Charging Time：≦2.5H
10,Working Time：7~8 Hours
11,Standby Time：120 Hours
12,Charging Supply:DC5V Round Hole Jacket(Computor USB,Mobile phone charger,car charger)
13,Compatible Mobile:Android,ios,windows,Symbian
14,Frequency range: 2.4GHz
