WSA-5RP Wireless Surround Sound Rear Speakers Kit with 2 x 50W Amplifier Built-in, 5.2G / 5.8GHz Dual Band Selectable, Total 106 RF Channel Auto Switching. Included Components: Wireless Transmitter, Receiver, Speaker Line Level Input, Stereo RCA Input, options for passive bookshelf/rear surround sound speakers and a powered/active subwoofer.
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