The BOSS NF-1 noise gate allows for sound quality adjustment with SENS and DECAY controls. - Model Name: NF-1 - Brand: BOSS - Function: Noise Gate - Controls: SENS, DECAY - Input/Output Terminals: INPUT, OUTPUT Power-on has been confirmed. Please understand that this item is being sold as-is. The item will be delivered as the main unit only; no box or adapter is included. In addition to scratches, there is Velcro, some dust, and debris. I will clean it briefly before shipping and remove as much as possible. Thank you for viewing.