In ear headphones series sony mdr type of fitting in ear transmission mode wired features gold plated jacks headset compatible with ios sound function passive noise reduction sound mode stereo sensitivity 103 dbmw impedance 16 ohm frequency response 5 24000 hz max power handling 100 mw driver 9 mm number of drivers 1 membrane pet magnet type neodymium length of cable 12 m types of cable retractable cable straight cable symmetrical doub