The MXR Booster Mini gives you the sonic secret sauce of the Echoplex Preamp with the legendary boosting power of the MXR Micro Amp in a lightweight, space-saving mini housing. The Volume control has up to +25dB on tap while the Tone control rolls off highs. To add a little extra grit to your signal, adjust the internal Echoplex Preamp level control. Put the MXR Booster Mini on your board to save space, season up your tone, and fly high above the mix.Powered by a 9v power adapter it will fit in well with all your other stompboxes! If it's in stock then it's ready to go with FREE next day UK delivery so get it quick and boost that sound in no time!