Xotic EP-Booster This is a pure clean booster, an effects pedal that enhances the delicious mid-range frequencies. I've used it for many years, but I'm selling it because I've upgraded to a limited edition version. There is a large scuff mark on the front. Please refrain from purchasing if you are concerned about this. - Model Name: EP-Booster - Brand: Xotic USA - Connections: IN/OUT Thank you for looking.