add a microphone on you headphones Materials you needed a old microphone(or capsule microphone from old mobile headphone,easy to connect or soldering wires)copper wire(rigid)heat shrinkclip from mobile headphone Assembly The copper wire is the first... structurejoin the microphone and use the...By: alby21europa
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from Instructables: exploring - technology - robots http://ift.tt/1sEUKxw
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