Bluetooth Wireless Headphone for Samsung iPhone HTC:
Bluetooth earphone with micro USB charger cable
Bluetooth version: V4.1
Support: HFP, HSP, A2DP, AVRCP
The largest communication distance: 10m (class 2)
Bluetooth earphone can connect 2 mobile phones synchronously 
Charging time: about 1.5 hours
Talking time: about 4.0 hours
Standby time: 100 hours
Playing music time: 3.5 hours
Color: Black,Gold,White,Red,Silver
Micro USB charger cable: about 30cm
Package: PET box with color card
Package size: W60*H180*D40mm