Jabra/GN Netcom Headset BT-130. Wireless range: 10 m. Headphone sensitivity: 31 dB, Impedance: 16 Ом. Talk time: 6 h, Standby time: 120 h. Dimensions (WxDxH): 25 x 21 x 62 mm, Weight: 18 g. Material: ABS, PC, Compatibility: Telephone