Universal Bluetooth V3.0+EDR Stereo In-ear Headphone w/ Microphone for Iphone / Ipad (Cable-78cm)
Bluetooth version: V3.0+EDR. Transmission power: Class2. Radio frequency: 2.4~2.48GHz. Support modes: A2DP/hands-free mode. Transmission distance: 5-8 meters depending on the actual usage environment. Charging time: 2 hours (Charging voltage:3.7V). Call/listening to music/movie time: 5 hours. Support high quality stereo music playback.