Description This earphone uses renowned stereo Bluetooth4.0 chip to ensure high-fidelity sound quality and stable performance. Allow you to power on/off, answer/hang up/reject/redial call, pause and play, vol+/-, next/previous track. Build-in rechargeable li-battery, can be charged via USB cable. Specification: color:green,blue,red,rose red,black bluetooth:4.0 Channel:stereo Package includes: 1 * earphone 1 * cable 1 * manual