Iqua Wireless Headset BHS-701 (orange). Interface type: Bluetooth 1.2. Headphone frequency: 20 - 20000 Hz, Headphone sensitivity: 103 dB. Talk time: 12 h, Standby time: 350 h. Dimensions (WxDxH): 166 x 140 x 53 mm, Weight: 83 g. Operating temperature range (T-T): -20 - 55 °C