This is a great little guitar effect box. The only thing i can slight about it is that you can not use battery power on it. It only plugs in .. and this information was not in the description. The box does not come with a power supply so I would suggest that you purchase the supply when you purchase this effect box. Other than that I love it. I have purchased many MUGIG products so far and this the only one I have had any surprises with. Once I found a power supply for it It worked great and I am satisfied with my purchase!!