In ear headphones series emtec use project type of fitting in ear transmission mode wired features microphone in line control manufacturer specific features hd sound magnet system headset compatible with android sound functions bass boost passive noise reduction in line volume control sensitivity 90 dbmw impedance 16 ohm frequency response 20 20000 hz max power handling 3 mw driver 92 mm number of drivers 1 types of cable flat cable tangle fr