Bluetooth Headphone                             
1.Bluetooth Version:JL3.0 
2.Battery: 400MAH
3.operation range 8-10M
4.charging time 2-2.5H
5.operating time music 10-12H
6.operating time phone/talking   10-12H
7.operating time standby 20-22H
8.Frequency Response 90hz-20khz
9.Microphone Sensitivit  -36±4dB  10.Signal-to-Noise Ratio >85db
11.Accessories:1*charging cable