Yes a pitch modified gameboy, A potentiometer was added to the gameboy to control the speed, but also the pitch of it.
But i will talk less about it Ill just show you.
The gameboy has a pro sound mod on the original head phone output.
The speaker was removed to make way for potentiometer.
This thing makes some great sound and is a lot of fun!
I'm selling for a 80 dollars and you get 10 dollars off if you buy a copy of LSDJ with it.
shipping with out a tracking number is free,
but if you would like a tracking number shipping will be an extra $10.
Email me if you want to buy something, my email address is: firstname.lastname@example.org