Approx APPHS02BL. Device interface: 2x 3.5 mm, Cable length: 2 m. Ear coupling: supraaural, Headphone frequency: 15 - 20000 Hz, Impedance: 32 Ом. Microphone frequency: 30 - 15000 Hz, Microphone sensitivity: 58 dB, Microphone input impedance: 10 Ом. Weight: 85 g. Package dimensions (WxDxH): 185 x 90 x 210 mm, Package weight: 300 g