AKG K171MKII CUFFIE PROFESSIONALI TECHNICAL SPECIFICATION General Headphone type closed Audio Frequency bandwidth 18 to 26000 Hz Sensitivity headphones 107 dB SPL/V Max. Input Power 200 mW Rated Impedance 55 Ohms Earpads - - - Detachable cable yes Audio Interface Type Screw-on Jack Combo (1/4" and 1/8") Gender Male Contacts 3-pin Interface Finish Gold Dimensions / Weight Length 85 mm Width 185 mm Height 190 mm Net Weight 240 g