Denon AH-D310. Ear coupling: circumaural, Headphone frequency: 10 - 22000 Hz, Headphone sensitivity: 105 dB. Connectivity technology: Wired, Headphone connectivity: 3.5 mm, Cable length: 1.3 m. Weight: 153 g. Maximum input power: 1 W This is an auto-generated long summary based on the first three features of the first five feature groups.