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Amazon.com: Acoustic Audio by Goldwood R-191 in Ceiling/in Wall Speaker Pair 2 Way Home Theater Surround Speakers,White,5.25-Inch
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Acoustic Audio by Goldwood Bluetooth 2.1 Surround Sound System with Optical Input, LED Light Display, FM
Acoustic Phone Speakers - How do Acoustic Phone Speakers work? Acoustic phone speakers, also called passive phone speakers, amplify the sound from a mobile phone's internal speaker, without requiring any electrical power.
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