耳機(jī)一種傳遞電子信號(hào)的設(shè)備，比如從電話、立體聲或廣播接收器上傳出可聽(tīng)的聲音。這種設(shè)備嵌到耳朵上或耳朵里 A device that converts electric signals, as from a telephone, stereo, or radio receiver, to audible sound and fits over or in the ear.
耳塞電話接收器或助聽(tīng)器上嵌入耳中或附著在耳上的部分 A part, as of a telephone receiver or hearing aid, that fits in or is held next to the ear.
