This is a RAT effector, capable of distortion, filtering, and volume adjustment. I bought it for live performances, but I'm selling it because I haven't had many opportunities to use it. - Model Name: RAT - Brand: Pro Co - Functions: Distortion, Filter, Volume Adjustment - Input/Output Terminals: IN, OUT terminals - LED Indicator: Yes - Battery Compartment: Easy access - Includes warranty and rubber packing Instant purchase ○ Thank you for looking.