Bluetrek Duo Stereo Bluetooth Headset. Wireless range: 10 m, Bluetooth version: 2.0+EDR, Bluetooth profiles: A2DP. Headphone connectivity: 3.5 mm. Talk time: 6 h, Standby time: 168 h. Dimensions (WxDxH): 20.3 x 46.8 x 9.3 mm, Weight: 8.6 g. Compatibility: Multi