Smart Phone Stereo Bluetooth Earphone , wireless stereo bluetooth headset

Smart Phone Stereo Bluetooth Earphone , wireless stereo bluetooth headset Specification: Bluetooth Version V4.0 Support HSP, HFP, A2DP and AVRCP/Handfree Frequency Range 2.401-2.480GHz Frequency response 20Hz-20KHz Distortion factor ≤1% Working current 25~30 mA Input DC: 5V/130mA Output power 2x20mW Talk time Up to 15 hours Music play time Up to 10 hours Standby time Up to 500 hours Charging time less than 2 hours product weight 32g