External TV speaker

Wiktionary Word definitions in Wiktionary
n. A bar containing multiple speakers that can be mounted under or alongside a television, etc. instead of having separate speakers positioned around the room.

Wikipedia Word definitions in Wikipedia
A soundbar , sound bar or media bar is a special loudspeaker enclosure that creates a reasonable stereo effect from a single cabinet. They are much wider than they are tall, partly for acoustical reasons, but also so that they can be mounted above or below ...