1. 耳機 Earphones are a small piece of equipment which you wear over or inside your ears so that you can listen to a radio or cassette recorder without anyone else hearing.
2. (電話(huà))聽(tīng)筒 An earphone is the part of a telephone receiver or other device that you hold up to your ear or put into your ear.
earphone
earphone英英釋義
noun
1. electro-acoustic transducer for converting electric signals into sounds it is held over or inserted into the ear
e.g. it was not the typing but the earphones that she disliked