via this eBay listing
"The Roland GR-700 Guitar Synthesizer is a high-quality instrument designed for musicians who want to explore new sonic possibilities. With 9 keys and a variety of input/output ports, including MIDI OUT and guitar input, this synthesizer offers endless creative possibilities. The inclusion of 3 memory cartridges (original sounds, additional sounds that came with it, and an essentially blank cartridge with one sound on it) and display screen further enhances its functionality. Includes 6 pin cable to connect to a programmer. Unit came direct from Japan with a converter, always used it, not sure it needs it."
