Thank you for viewing. I am selling this because I no longer need it after purchasing a multi-effects processor. By connecting it to a guitar and then to a smartphone, you can record guitar and use effects in GarageBand. You can record live guitar sounds, which is different from programmed sounds. By connecting it to a speaker and GarageBand, it can also be used as an effects unit. It has less noise and is more expandable than regular iRig 2, etc. Accessories and the outer box are not included. The back cover is missing, but there is no problem with use. Operation has been confirmed with an AC adapter and a 9V battery. Price negotiations are possible. Please provide your offer.