Semi-open headphone Natural Deep sound Self-adjusting headband Comfortable fit The HP-280 Pro is a semi-open headphone with a comfortable fit. It has an extended frequency response in the low and high ranges. The headband is self-adjusting and the ear pieces are large with vinyl finishing. Whether you are monitoring, mixing or just listening to music the HP-280 Pro gives you comfort and a natural and deep sound. The same model is also available as closed back, HP-290 Pro, D1811.Jellemzõk:Driver unit: Ø50Impedance: 32 OhmSensitivity: 98 dB SPL (1mW)Freq. Response: 10-30.000HzMaximum power: 300mWCord length: 2.5mConnector: 3.5mm JackWeight: 0.28 KgAccessories: Pouch, 3.5 > 6.3mm stereo adapter