The MXR M133 Micro Amp guitar effects pedal is a signal booster that's ideal for kicking in for a ripping solo! These pedals are perfect for giving your sound a volume boost when a louder tone is required.If you change between guitars at gigs and one is quieter than the other then this is a great way of leveling them out for a consistent sound. The compact design is a winner with your pedal board too as it can fit in those smaller gaps. With only one knob it's super easy to use, just dial in how much gain you want and kick it in for a clean, crisp boost. They also work great for crunching up the input of a valve amplifier, if you need a bit more drive at lower volumes then use this to get the input stage of your amp crunching up nicely!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!