Bass effectors that provide a variety of tones. - Model Name: MICROTUBES INFINITY - Functions: Compression, Drive, Tone, Blend, Level Adjustment - Accessories: USB cable, manual, sticker Thank you for viewing. I purchased this new and have been using it, but I think there are no major stains or scratches. Operation is not a problem. The power adapter is not originally included, so please purchase a separate power supply and prepare it.