Motorola Bluetooth Stereo Headphones HT820 + Tunes. Wireless range: 10 m, Bluetooth version: 1.2. Talk time: 17 h, Standby time: 500 h. Dimensions (WxDxH): 165 x 165 x 63.5 mm, Weight: 100 g. Compatibility: Telephone, Continuous audio playback time: 12 h