QUICKMAN HM901 Stereo Bluetooth V4.0 + EDR In-ear Earphone w/ Microphone - White
Function: answer calls and enjoy the music. Bluetooth version: V4.0 + EDR. Wireless frequency: 2.4GHz. Transmission power: Class2. Transmission range: theory within 10 meters depending on the actual usage environment. Built-in chargeable Li-ion 120mAh battery. Suitable for cellphones and Tablet PC with bluetooth function.