Synth-A-Sette Mini Synthesizer
This pocket-sized musical instrument from MicroKits is an analog synthesizer shaped like a cassette tape. It has a touch-sensitive 13-key keypad, which you can connect to other objects (like bananas) to turn them into keys. It’s got a built-in 1-watt speaker, a headphone jack, and controls for pitch, volume, octave shift, and a vibrato effect.