Philips SHS3300. Ear coupling: circumaural, Headphone frequency: 12 - 22000 Hz, Headphone sensitivity: 102 dB. Connectivity technology: Wired, Cable length: 1.2 m. Gross weight inner carton: 0.21842 kg, Height inner carton: 106 mm, Length inner carton: 179 mm. Gross weight outer carton: 2.07961 kg, Height outer carton: 252 mm, Length outer carton: 385 mm