Denon AH-C452. Ear coupling: intraaural, Headphone frequency: 5 - 24000 Hz, Headphone sensitivity: 105 dB. Connectivity technology: Wired, Cable length: 0.7 m, Connector contacts plating: Gold. Weight: 4.2 g. Extension cable: 0.8m. Maximum input power: 0.200 W This is an auto-generated long summary based on the first three features of the first five feature groups.