• Wireless and touch control design 
•  Wireless dual ear stereo design, left and right ear channel separation.
•  Mini magnetic charging dock compartment for long-time electric power storage
•  50mAh battery in each headphone ensures 2.5 - 3 hours of playing time. The earphones can be fully charged in 30-45 minutes and the charging case can be fully charged in 1-2 hours

Specification:

BT Version: V4.2 
Protocol: A2DP, AVRCP, HFP, HSP 
Frequency Range: 2.402GHz-2.480GHz 
Transmission Range: 48 feet / 15m 
Charging Voltage: DC5±0.25V 
Working Voltage: 3.7V（3.3-4.2V）
Charging box of battery capacity:2800mAh (about to pair of BT headset with three electric) 
Input:5V/500mAh 
Output:5V/500mAh Max 
Charging Time: 30-45 minute 
Talking time: 2 hours(with the charging case up to 7 hours) 
Standby Time: about 120 hours 
Package: 
2* BT headset 
1* Charging box 
1*USB Charging cable 
1*User Manual 
4*Ear cap