Headband headphones noise cancelling headphones series panasonic rp hx type of fitting on ear transmission mode wired features microphone headset compatible with ios sound functions passive noise reduction in line volume control active noise reduction sensitivity 106 dbmw impedance 35 ohm frequency response 20 20000 hz max power handling 1 000 mw driver 40 mm length of cable 12 m type of cable single sided jack 35 mm jack shape l shaped c