Simple, black and white brochure.
Guitar Controler G808 is neck-thru, G303 is set neck. GR300 is polyphonic guitar synthesizer unit (2VCO per each strings).
The price of GR300 is 119,000 yen, G808 is 120,000 yen, and G303 is 80,000 yen. Manufacture is "Fuji Roland Co.ltd" and that may be the joint company of Fujigen and Roland.