In ear headphones series groov e gv eb type of fitting in ear transmission mode wired features in line control microphone headset compatible with ios sound function in line volume control sensitivity 108 dbmw impedance 32 ohm frequency response 20 20000 hz driver 10 mm length of cable 12 m type of cable double sided jacks 35 mm 4 pole jack plug for apple blackberry jack shape straight included in delivery carry pouch ear adaptor set