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Diy bluetooth speaker* When I connect the battery (7v) to amp board, the board heats up. I'm sure I dont have wires crossed : r/AskElectronics
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CELLONIC® USB Speaker Cable Compatible for Tribit StormBox, MaxSound Plus, XSound Go 2m Fast Charging 2A Portable Wireless Bluetooth Speaker Charger Cord Nylon - Grey : Amazon.co.uk: Electronics & Photo
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