Capsule speaker
A capsule speaker is a small self-powered auxiliary loudspeaker. Typified by the X-mini range, modern design allows them to produce sound with extended bass responses far beyond what would have historically been expected from such a small transducer.
References
This article is issued from Wikipedia - version of the 9/27/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.