Thank you for viewing. I am selling this item to organize my equipment due to a move. HAO RUST BOOSTER Features Boost and Level controls. It can boost the signal without changing the tone, producing a thicker sound. - Model Name: RUST BOOSTER - Brand Name: HAO - Control Knobs: BOOST, LEVEL - LED Indicator: Yes - Switch Type: Toggle Switch - Operation confirmed *No outer box or instruction manual, only the main unit. It will be carefully packed and shipped. #Guitar #EffectPedal #Booster #hao