[ SOFT AIR-BREATHING EAR CUSHION ] Top grade air breathing mesh fabric and high density soft memory foam used for both the ear cushion and the headband pads to avoid muggy feeling. [ ADJUSTABLE HEADBAND LENGTH ] Easy adjustment of headband length for snug and comfortable fit of all type head figures and sizes. [ BUILT-IN VOLUME CONTROL WHEEL ] Easy volume control via our built in volume control wheel. Adjust the volume at any time to immerse yourself in the happy hours of the game. Microphone Element: Back Electret CondenserPolar Pattern: Uni-directionalFrequency Response: 70 Hz ~ 20 KHzSensitivity: -47 dBImpedance: 680 Ohm Package Include: GM-591 Headphone1m Extension Cable for PC GM-591 Headphone Color: Black Specifications Headphone Driver Unit: 53 mmFrequency Response: 10 Hz ~ 25 KHzImpedance: 32 OhmSensitivity: 103 dBM.P.O.: 200 mWT.H.D.: <1 %Plug: 3.5mm TRRSCable Length: 1.1 m