Philips SHE3595BL. Cable length: 1 m. Ear coupling: intraaural, Headphone frequency: 12 - 22000 Hz, Headphone sensitivity: 103 dB. Package dimensions (WxDxH): 97 x 20.5 x 172 mm, Package weight: 38 g. Compatibility: Telephone, Cable type: Copper, Maximum input power: 0.05 W