earphone
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.
On the subject of reading, Francis Bacon, who lived at about the same time as shakespeare, wrote these words, Some books are to be tasted, others to be swallowed, and some few to be chewed and digested. This good advice shows how it is possible to read