Headband headphones volume controlled mini subwoofer neodymium magnet 90 tilting cups leather touch ear pillows speaker diameter 30mm includes aa battery available in a wide range of styles series skullcandy skullcrusher type of fitting over ear transmission mode wired features gold plated jacks sound function passive noise reduction sensitivity 99 dbmw impedance 32 ohm frequency response 20 20000 hz max power handling 120 mw driver 30 mm len