In ear headphones type of fitting in ear transmission mode wired features microphone in line control sweat proof music functions next track pause play previous track call functions answer call end call button position on cable sensitivity 92 dbmw impedance 32 ohm frequency response 20 20000 hz driver 9 mm number of drivers 1 length of cable 12 m types of cable flat cable double sided tangle free jacks 35 mm 4 pole jack plug for apple b