ZOOM's multi-effects processor, the G1X FOUR. I purchased it used and have only used it at home. There are minor scratches and scuffs from use, but there are no major scratches, and I don't think there are any particular problems with its use. The power adapter is not included; the unit itself is all that's included. Please understand that this is a used item, and those seeking a product in new condition should refrain from purchasing. - Model Name: G1X FOUR - Brand: ZOOM - Function: Multi-Effect Processor - Features: Equipped with an expression pedal - Compatibility: GUITAR LAB compatible