The Roland GK-3 Guitar Pickup sends individual signals from each guitar string to GK-compatible devices. It is carefully designed for guitar performance with a big, smooth GK knob for quick control moves. A selector switches between synth, normal guitar tone, and mixed settings. It comes complete with attachment accessories including double-sided tapes, a holder to secure the controller to your guitars body, and a special pickup attachment plate for LP-style guitars. Other features include adjustable pickup cable length and a 1/4" phone jack for normal guitar use. The Roland GK-3 Pickup has been redesigned to adjust to the varying curvatures of different guitar models including pronounced archtops. Roland GK-3 Guitar Pickup Features: • Sends individual string signals to GK-compatible devices • Big, smooth GK knob for quick control moves • Selector switch moves between synth, normal guitar tone, and mixed settings • Includes extensive attachment accessories • 1/4" phone jack for normal guitar use • Pickup redesigned to adjust to the varying curvatures of different guitars • Controls • GK Volume • DOWN/S1 Switch • UP/S2 Switch • Select Switch Indicator • Power Indicator Connectors • GK Connector • Normal Pickup Input Jack Accessories • Normal Guitar Cable Owners Manual Options • GK Cable: GKC-3 (3 m), GKC-5 (5 m), GKC-10 (10 m)Unit Selector: US-20GK Parallel Box: GKP-4 Size and Weight ( BODY ) Width • 87 mm • 3-7/16 inches Depth • 74 mm • 2-15/16 inches Height • 23