Fretlight Traditional Electric Guitar with Built-in LED Lighted Learning System, Sunburst (FG-521SB) Electric guitar with innovative LED learning system to help you practice more enjoyably and efficiently. Includes Fretlight Studio 6 software w/advanced chord & scale library, Intermediate 101 complete lesson course (5 discs), Fretlight 10' cable, tools, manual, quickstart guide, and picks. Standard 1/4" output lets you connect to your amplifier, multi-pin output interfaces with your computer. Connects to your Mac or PC via USB for use with Fretlight Studio software (included) Advanced Polymer with LED's for all 21 Frets.