This is joyFi v1.0, a joystick-adapter that lets you play games using joysticks wireless-ly; hook the joysticks to the master-board, sit in a sofa 10 metres away from the slave-board that's connected to the computer, and play. No more hassle with cables.
Guaranteed tested and confirmed 100% working on any Amiga, Atari and Commodore 64. The adapter should, in theory, work on VIC20 as well, but this has not yet been tested.
This version has no support for mice or paddles.
The master board requires a 9V battery (not included).
Soldering instructions can be downloaded from here.
Product Code: JOY4X1SD85