Philips SHS4700. Ear coupling: circumaural, Headphone frequency: 12 - 24000 Hz, Headphone sensitivity: 104 dB. Connectivity technology: Wired, Cable length: 1.2 m, Connector contacts plating: Gold. Packaging type: Blister. EAN/UPC/GTIN (inner carton): 87 12581 49757 6, Gross weight inner carton: 0.29 kg, Height inner carton: 191 mm. EAN/UPC/GTIN (outer carton): 87 12581 49758 3, Gross weight outer carton: 2.738 kg, Height outer carton: 421 mm