Type semi-open, dynamic headphones.
Sensitivity 91 dB/mW, 104 dB/V.
Frequency range 15 to 25,000 Hz.
Rated impedance 55 ohms.
Max. input power 200 mW.
Earpads leatherette and velvet.
Cable 3 m single-sided and 5 m coiled cable (99,9% oxygen-free); plug-in cable on headphones (mini-XLR connector).
Connector gold plated stereo mini jack.
Adapter gold plated 1/8" to 1/4" screw-on adapter.
Net weight (without cable) 240 g (8.5 oz.).
Shipping weight 550 g (19.4 oz.)