Headphones

Headphones were a set of two speakers that fit over one's ears to allow one to listen closely to a transmitted message. 
In a 2374 Hirogen simulation of Nazi Germany, an SS radio operator wore headphones to listen to his two-way radio. ()
In 2399, Doctor Agnes Jurati wore headphones while she was listening to Kasseelian opera outside the Daystrom Institute in Okinawa. ()
==See also==
* Earmuffs
* Earphone
* Earpiece
* Headset
==External link==
*
Category:Communications technology