Loog 3 String Acoustic Kids Guitar for Beginners, App & Lessons, Green, for Children (LGMIG)From the Manufacturer $358,286 raised with 2,391 backers. Learn on a Loog. Play any guitar. Loog guitars use the first three strings of a guitar: same strings, same tuning. This is why finger placement and everything you learn on a Loog can be applied ..