I was thinking about a little portable Speaker to build. But I was thinking About the enclosure for it, so I cameUp with 9v battery case. Parts And Tools. 1: dead battery2: piezo speaker3: 3.5m audio jack4: little piece of foam5: piece of plastic (Tools)Soldering ironPliers Super glueSand pa...By: money bags
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from Instructables: exploring - technology - robots http://ift.tt/1xOQApY
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