Definitions for "earpiece"
a device for converting electric signals into sounds, designed to be held over or inserted into the ear; as, The common telephone handset has a speaker and an earpiece.
A small, electro-magnetic speaker for use in a telephone handset.
electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear; "it was not the typing but the earphones that she disliked"
a literal connection to a hive mind program
a small thing to provide peace of mind