Amptweaker TightMetal Distortion Effects Pedal True Bypass switch and Tight Attack Control; Gain, Tone, & Volume Controls and Gate switch with Chomp setting for quick stops; Mid switch with Thrash setting and Effects Loop with Pre/Post switch..tracks On/Off Footswitch ;LED lit knobs when using a power supply and battery disconnect switch with red indicator; Works with 9V-18V supplieslike 'variacing' your amp up and down