Sony MDR-E10LPL. Headphone frequency: 18 - 22000 Hz, Headphone sensitivity: 104 dB, Impedance: 16Ω. Connectivity technology: Wired, Cable length: 1.2m. Colour of product: Blue. Weight: 6g. Dimensions (WxDxH): 95 x 28 x 160 mm, Type: dynamic, Connector(s): L-shaped Stereo Mini plug