closeup of call center head phone

'around 'over air audio back band bone call canal cans center circumaural closeup colloquially combination conduction consist context contrast convert drivers ear ear' earbuds earphones1 earpieces1 ears earspeakers electrical electroacoustic emits front head headphone headphones headset hear hold individual leaving listen loudspeaker microphone nearby open pair phone place plug privately rest signal single small sound source speakers supra-aural telecommunication third top transducers type typically units use user user's wrap