Difference between Earpiece and Earphone

EARPIECE vs EARPHONE: NOUN

The arm on a pair of glasses that hooks over the ear to hold them in place.
A speaker placed inside or held near to the ear.
A device for converting electric signals into sounds, designed to be held over or inserted into the ear.
A name given to the side-piece of the burganet or open helmet of the sixteenth century, usually made of splints, and covering a leather strap or chin-band to which they are riveted. Compare cheek-piece. Also called oreillère.
Either of the two parts of an eyeglasses frame that extend over or around the ear.
An earphone, especially when not part of a pair.
A part, as of a telephone receiver or hearing aid, that fits in or is held next to the ear.
Electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear

A transducer that converts electric signals into sound and is held near the ear, especially as part of a telephone; an earpiece or headphone.
A small speaker that is worn in or over the ear, especially as one of a pair.
Electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear

Speakerphone, Earplug, Microphone, Bug, Atria, Tag, Atrium, Receiver, Listener, Handset, Ear, Headset, Phone, Headphone, Earphone

Bluetooth, Subwoofer, Dongle, Neckband, Microphone, Ipod, Earplug, Earbuds, 39, Handset, Headset, Headphones, Phone, Earpiece, Headphone

Neckband, Speakerphone, Earplug, Microphone, Bug, Tag, Atrium, Receiver, Listener, Handset, Ear, Headset, Phone, Headphone, Earphone

Walkman, Bluetooth, Subwoofer, Dongle, Neckband, Microphone, Ipod, Earplug, Earbuds, 39, Handset, Headset, Phone, Earpiece, Headphone

Then I bought a slate with pen and earphone.
High Quality Bluetooth Headphones Earphone Touch ELECTRO DH ref.
Is it okay to use earphone for a while?
The earphone jack in my seat was not working.
It seemed as if she had an invisible earphone.
This is a fantastic earphone to enjoy music!
My IFROGZ Plugz Wireless right earphone stopped working!
Earphone set in silicone case with cord retainer.
Plug the earphone into the monitor earphone jack, select the monitor channel with the monitor channel selector.
Power off and restart both sides of the earphone Wait for the transmitting device find your earphone and reconnect.