From Longman Dictionary of Contemporary Englishheadphoneshead‧phones /ˈhedfəʊnz $ -foʊnz/ ●●○ noun [plural] 
AMTTCRa piece of equipment that you wear over your ears to listen to the radio, music etc without other people hearing it
AMTTCRa piece of equipment that you wear over your ears to listen to the radio, music etc without other people hearing itExamples from the Corpus
headphones• We strap on the goggles and headphones which are wired up to what looks like a drum machine.• Even so, these are good headphones.• I say and pick his headphones up and hand them to him.• He fussed about what kind of headphones to use on the aircraft, approved uniforms and checked menus.• As if by magic, a stereo disc or tape heard through headphones produces a surround of sound. 