Switch between up to four instruments into Amp or Pedal Board. Each channel of The Bumper has a control for TRIM - to balance input levels, or DRAG - to adjust the load on magnetic pickups for the right tone. This one is like new. Note: The first picture above is the one for sale. The other picture is from on line, so you can see the back as well. Includes power supply. $120 Please call or text. I am near Mill Bay