Photo 1 of BT Power Amplifier Board, DC15 36V Built in Super Quiet Fan, Adjustable Frequency Level High Sound Low Sound Power Amplifier Module, Noiseless USB Amplifier Board for Wireless Speaker Board

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Photo 1 of BT Power Amplifier Board, DC15 36V Built in Super Quiet Fan, Adjustable Frequency Level High Sound Low Sound Power Amplifier Module, Noiseless USB Amplifier Board for Wireless Speaker Board Photo 2 of BT Power Amplifier Board, DC15 36V Built in Super Quiet Fan, Adjustable Frequency Level High Sound Low Sound Power Amplifier Module, Noiseless USB Amplifier Board for Wireless Speaker Board