Jabra/GN Netcom Supreme. Interface type: microUSB, Cable length: 10 m, Bluetooth version: 3.0. Ear coupling: supraaural, Impedance: 32 Ом, Driver unit: 24 mm. Talk time: 6 h, Standby time: 360 h, Charging time: 2 h. Dimensions (WxDxH): 89.7 x 29.9 x 21.9 mm, Weight: 18 g. Cables included: USB