Philips SHL5800. Ear coupling: circumaural, Headphone frequency: 10 - 28000 Hz, Headphone sensitivity: 106 dB. Connectivity technology: Wired, Cable length: 1.2 m, Connector contacts plating: Gold. Package dimensions (WxDxH): 198 x 87 x 217 mm, Packaging type: Box. Extension cable: 1.8 m. Gross weight outer carton: 1.906 kg, Net weight outer carton: 0.534 kg, Quantity outer carton: 3 pcs