Headband headphones folding headband driver unit 40mm series sony mdr type of fitting over ear transmission mode wired features gold plated jacks sound function passive noise reduction sensitivity 106 dbmw impedance 63 ohm frequency response 10 20000 hz max power handling 1 000 mw driver 40 mm length of cable 3 m types of cable spiral cord single sided jack 35 mm jack shape straight colour black weight 230 g included in delivery 63