In ear headphones series sony mdr xb type of fitting in ear transmission mode wired features in line control splashproof sweat proof sound type powerful bass sound mode stereo button position on cable sensitivity 106 dbmw impedance 56 ohm frequency response 4 24000 hz driver 12 mm number of drivers 1 membrane mylar dome magnet type neodymium length of cable 12 m types of cable double sided flat cable tangle free jacks 35 mm 4 pole ja