Wampler Plexi Drive Deluxe, Heritage series, e-guitar stompbox, Overdrive, controls: Bass, Middle, Treble, Pre-Gain, Post-Gain, Level, switches: Bass Boost, Bright Boost, footswitches: Pre-Gain, Post-Gain, True Bypass,powered by a 9V battery or 9V power supply (not included, Item No. #108096), dimensions: 88.9mm x 114.3mm x 38.1mm (height excludes knobs and switches)