Feature:
●Bluetooth Version:V5.0
●Working Range:in 10 meters
●Frequency Response:100HZ-20KHz
●Play time:about 2-3h
●Talk time:about 3h
●Earphone bbttery:35mAh/3.7v
●Charging box battery:250mAh/3.7v

Package List :
●Bluetooth earphone x1pair
●Charging cable x1
●Manual x1