Headband headphones series marshall major type of fitting on ear transmission mode wired features gold plated jacks music functions next track pause play previous track call functions answer call end call button position on cable sensitivity 99 dbmw impedance 64 ohm frequency response 10 20000 hz max power handling 20 mw driver 40 mm number of drivers 1 types of cable single sided spiral cord jack 35 mm jack shape l shaped number of k