Manual Guitar Divided Pick-up Unit Designed for use with the Yamaha G50 The G1D Guitar Pickup Unit attaches to a 6-string electric or steel-string acoustic guitar and transmits the sounds generated by the string vibrations to the Yamaha G50 Guitar MIDI Converter. Dimensions (W x D x H) 107.1 x 7.8 x 7.6 mm (Pickup only) Weight 70g (Whole Pickup Unit)