The HP-20 headphones feature high quality semi closed ear, dynamic stereo powered by lightweight neodymium ferrous rare earth magnet system with lightweight copper clad aluminium voice coils. The adjustable frame allows for a comfortable fit and hours of wearing without fatigue. The coiled cable is gold plated mini stereo 3.5mm jack with a 1/4" jack adapter.
Response: 20Hz-20kHzSensitivity: 105dbImpedance: 32 OhmsPower Handling: 20mWWeight: 111g