Philips SHM6110U. Device connectivity: Wired, Cable length: 2 m. Headphone frequency: 10 - 22000 Hz, Impedance: 24 Ом, Headphone sensitivity: 109 dB. Microphone sensitivity: 38 dB. Dimensions (WxDxH): 115 x 68 x 145 mm, Weight: 62 g. Gross weight inner carton: 1.625 kg, Gross weight outer carton: 7.7 kg, Gross weight packaging: 0.221 kg