Multi-function Guitar Effects Processor - Model Name: GT-1 - Type: Guitar Effects Processor - Controls: With Pedal - Input/Output Terminals: INPUT, AUX IN, PHONES, OUTPUT, USB - Power: DC Power Adapter Thank you for viewing. I am selling this to organize my equipment. I purchased it last year and have only used it a few times indoors, so it is in clean condition with no noticeable scratches. The operation is also good. I will include a reference book I bought with it as a bonus. Please let me know in the comments if you don't need it.