This is the Boss ME-25 multi-effects processor. It features COSM amp modeling, allowing you to quickly achieve your ideal sound. It has some scratches and dirt from use, but it works well. The only included item is the main unit. Feel free to ask if you have any questions! Features: * 10 types of amp modeling, including the newly developed ULTRA METAL by COSM. * Sound library for instant access to ready-to-use sounds. * Super Stack function for producing heavy, low-end tones. * Phrase loop function with recording time up to 38 seconds. * Librarian BOSS TONE STUDIO (PC/Mac compatible) is available for free download from bosstonecentral.com. * Users can freely share live sets on the online platform BOSS TONE EXCHANGE.