The original fidget synth toy now in Do-It-Yourself form! Put it together while you do the job. Push the button and turn the knob. Available in six different flavours. Includes one battery cover.

Prerequisite Tools: Soldering Iron, Solder, Side Cutters, and Small Flathead Screwdriver

Online assembly instructions here.

*Battery not included. Most rechargeable and non-alkaline batteries fail to provide enough current for oscilation.