Soyntec Netsound 200. Ear coupling: supraaural, Headphone frequency: 20 - 20000 Hz, Headphone sensitivity: 112 dB. Connectivity technology: Wired, Cable length: 1.35 m. Dimensions (WxDxH): 61.5 x 47.5 x 36 mm, Weight: 44 g. Package dimensions (WxDxH): 230 x 160 x 60 mm, Package weight: 83 g. Maximum input power: 0.06 W