Bone Conductor Box

https://www.youtube.com/watch?v=IS2uS_aWTHw

Turn almost anything into a speaker with a [bone conductor transducer][2] and [Adafruit's TPA audio amplifier][1].

If your next project needs some sound, a bone conductor transducer will have you experimenting with all sorts of objects. If you've ever wired a speaker system before, you'll find this DIY electronics project is fun and easy!

This incredible speaker does not have a moving cone like most speakers you've seen, instead, a small metal rod is wrapped with the voice coil. When current is pulsed through the coil, the magnetic field causes a piece of metal to expand and contract - if pressed against a flat surface or cavity it turns it into a speaker!

Tools & Supplies
[Soldering Iron][3]
[Wire Strippers][4]
[3D Printer][5]

Parts
[Bone Conductor Transducer][2]
[150mAh Lithium Ion Polymer Battery][6]
[Stereo Headphone Jack][7]
[Slide Switch][8]
[JST Battery Ext. Cable][9]


[1]: http://www.adafruit.com