Specification:
Bluetooth Specification : V3.0+EDR class 2
RF Frequency Range: 2.402-2.480GHZ,2.4G ISM brand
Bluetooth Stereo Wirleess Headphone
MP3 Player
FM Stereo Radio
Wired Headphone
Impedance:32 ohm
Operating distance:about 10 meters
Nominal charging time: Max 2 hours
Micro USB Charging Port
Charger adapter output: DC 5V&130mA