Headband headphones series philips fidelio type of fitting on ear transmission mode wired features gold plated jacks headset compatible with android blackberry ios call function call music switch sound function passive noise reduction sound mode stereo button position on cable sensitivity 107 dbmw impedance 16 ohm frequency response 7 40000 hz max power handling 150 mw driver 40 mm number of drivers 1 membrane pet magnet type neodymium