??

Specifications:
Bluetooth Version: V4.0
Bluetooth Protocol :A2DP，AVRCP，HSP，HFP
RF Frequency Range: 2402 ~ 2480MHz (ISM BAND)
Transmitting Power: Class2
Operating Distance: Up to 10m (free space)
Talk Time: About 5hrs
Bluetooth Music playtime: About 5hrs
Standby Time: About 300hrs(12.5days)
Charging Time: About 2hrs
Frequency Response: 20-20kHz
Sensitivity: 105dB
Package:
1 x Bluetooth Headset
3 x Eartip
1 x Earphone
1 x USB Cable
1 x User Manual

';