ChordBuddy Guitar Learning System & Teaching Aid Chord Buddy with True Tune Chromatic Tuner Start playing guitar from the moment you install the ChordBuddy. Includes True Tune TT-05 Chromatic Tuner that gets you tuned up and ready to play. This version ONLY works on right-handed guitars. A left handed version is available in our other listings PLEASE MEASURE your guitar neck berfore ordering. 1 1/2 minimum and 1 7/8 maximum) and from the nut to the 3rd fret should be approximately 4. If your neck is over 1 7/8" you need the "classical guitar" version. If it is less than 1 1/2" the ChordBuddy will not work on your guitar. The Chord Buddy works on most standard dreadnaught, full-size, 3/4 and 5/8-sized acoustic and electric guitars with average to low string height. This version will not work on 1/2 size guitars. Each guitar is different and installation and fitment can vary. Some guitars may take extra time to get the ChordBuddy dialed in and working properly. Shark Tank proven product and is an effective, all-in-one learning system, suitable for all ages when used properly. Please vist ChordBuddy on the web for installation tips, tricks and additional information. Tuner is packaged inside the ChordBuddy box.