Circumaural, semi-open headphones with self-adjusting headband; Applications: Professional stereo-studio- headphones; Frequency range: 15–25.000 Hz; Sensitivity: 91 dB at 1 mW / 104 dBV; impedance: 55 ohms per channel; power handling capability: 200 mW; Cable: 3 m and 5 m (OFC) single-sided, plug-in, easily replaceable cable with mini-XLR connector and with hard-gold plated, screwable 1/4" jack plug; Net (headphones without cable)/shipping weight: 240/550 g (8.4/19.2 oz.).