In ear headphones earhook headphones series philips shq type of fitting in ear transmission mode wired features gold plated jacks sound function passive noise reduction sound mode stereo sensitivity 107 dbmw impedance 16 ohm frequency response 6 24000 hz max power handling 20 mw driver 86 mm number of drivers 1 membrane pet magnet type neodymium length of cable 12 m types of cable straight cable double sided symmetrical kevlar jack 3