SPECIFICATIONS: Transducer Type Dynamic Operating principle Closed Sound coupling to the ear Circumaural Frequency Response 5 €“ 40.000 Hz Nominal impedance 30 ohms Nominal sound pressure level @1 mW / 500 Hz 95 dB SPL Nominal sound pressure level @1 V / 500 Hz 110 dB SPL Total Harmonic Distortion (THD) @500 Hz < 0,04% Short term maximum input power 100 mW Ambient noise attenuation 25 dB A Clamping force 6 ±0,5 N Weight (without cable) 377 g Scope of delivery Closed-back headphones DT 1770 PRO MKII Two sets of ear pads: velours and leatherette 3m straight cable & 5m coiled cable with 3-pin mini XLR connector Premium hardcase Instructions