The OOO is similar to the OM in size and tone, but has several distinguishing features that provide it with a more vintage styling. The primary differences are that the OOO has 12 frets and a slotted peghead, in comparison with the OM's 14 frets and solid peghead. A favorite instrument of fingerstyle players, the OOO has a slightly smoother, more bass-resonant tone than the OM. The guitar's vintage features include SCGC tuners, modern string spacing at the bridge, and a slim "V"-shape neck profile.