Have you ever used a tooth tunes toothbrush? Probably not, because they’re for children - but these things are pretty neat-o. They play music inside your head using bone conduction while you brush. The idea is that kids will listen to the entire song before they stop, thus brushing their teeth for long enough.

Problem is, it only comes with one song. If you want to hook up your iPod to the thing it’s going to require a little hacking. This guide show you how to take apart the tooth tunes toothbrush, and the rest is up to you. Happy hacking!

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