In ear headphones series philips she type of fitting in ear transmission mode wired features gold plated jacks manufacturer specific features flexi grip sound mode stereo sensitivity 107 dbmw impedance 16 ohm frequency response 8 24000 hz max power handling 30 mw driver 86 mm number of drivers 1 membrane mylar dome magnet type neodymium voice coil copper length of cable 12 m types of cable straight cable ofc symmetrical double sided