n (usu pl 通常作复数)
(a) either of two receivers attached to each other so that they fit over the ears, used for listening to records, the radio, etc 耳机.
(b) similar device with only one receiver that fits inside one ear 单耳机.
n [usually plural]
a small piece of equipment connected by a wire to a radio, personal stereo
etc, which you put in or over your ears so that only you can listen to it