I'd recommend getting the GHIII wireless guitar. It works on GHIII and Rockband on the 360. If you get the Rockband guitar, you can't use it for GHIII. If you have a PS3, neither guitar is interchangeable. If you get a RB guitar it works w/ RB. If you get a GHIII guitar, it works w/ GHIII. And yes, in either case, get the wireless guitar. Wires suck.