As nouns the difference between loudspeaker and headphone
is that loudspeaker is an electromechanical transducer that converts an electrical signal into audible sound while headphone is a listening device placed or worn in the ear, usually sold in pairs.
loudspeaker
Noun
(
en noun)
An electromechanical transducer that converts an electrical signal into audible sound.
An encasing containing one or more loudspeaker devices and usually other electrical equipment such as a driver.
Synonyms
* (electromechanical transducer) speaker
* (encasing containing loudspeakers) speaker cabinet
headphone
English
Noun
(
en noun)
A listening device placed or worn in the ear, usually sold in pairs
- She handed me one headphone so I could listen too.
Usage notes
Also used as a noun modifier: e.g. headphone plug, headphone socket.