Nokia WH-920. Interface type: 3.5 mm, Cable length: 1.2 m, Headset connectors supported: 3.5mm Nokia. Ear coupling: intraaural, Headphone frequency: 20 - 20000 Hz, Impedance: 32 Ом. Dimensions (WxDxH): 19 x 27 x 15 mm, Weight: 18 g. Operating temperature range (T-T): -25 - 50 °C. Compatibility: Telephone, Volume control: Digital, Number of products included: 1 pcs