Headband headphones series panasonic rp hf type of fitting on ear transmission mode wired features collapsible in line control microphone music functions pause play call functions answer call end call sound function passive noise reduction sound mode stereo button position on cable sensitivity 103 dbmw impedance 26 ohm frequency response 10 23000 hz max power handling 1 000 mw driver 30 mm number of drivers 1 magnet type neodymium lengt