Palmer Pocket Amp Bass Preamp, multi-purpose bass guitar preamp for gigging, recording and practicing, 3 sound modes: Clean, Overdrive und Fuzz, 3-band EQ with semi-parametric mid control that is specifically tuned for bass guitar, DI or speaker emulated out, effects loop, controls: Bass, Mid Level, Mid Freq, Highs, Drive, FX Blend, Saturate & Vol, connections: bass in with pad switch, phones, aux in, bass thru, XLR DI out, amp out with ground lift, fx insert, Die-cast aluminum housing, powered by a 9V battery or 9VDC power supply (not included, Item No. #108096)