Philips The Covert SHO4507. Interface type: 3.5 mm, Cable length: 1.2 m. Ear coupling: intraaural, Headphone frequency: 12 - 23500 Hz, Headphone sensitivity: 102 dB. Weight: 15 g. Package dimensions (WxDxH): 95 x 30 x 172 mm. Compatibility: Multi, Volume control: Digital, Gross weight packaging: 0.067 kg