| 
Type: closed-back, dynamic headphones,
supraauralEfficiency: 115 dB/VFrequency range: 16 Hz to 24
kHzRated impedance: 32 ohmsCable: 99.99% oxygen-free cable, 2.5 m (8.2
ft.) | 
Net weight: (without cable) 150 g (5.3 oz.)Special features: 3D-Axis (folding mechanism)Patent(s): 3D-Axis folding mechanism (Patent no. AT 414.198,
JP 3.984.595, US 7,172,052, RU 2.282.954); 3D-Axis folding
mechanism (Patent no. AT 413.923, RU 2.282.953, JP 3.984.594, US
7,072,483) |