Electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear.
a device 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"
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"
electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear