It solves an annoying problem that people have complained about for years, and does so with quiet, reliable performance! Handles from one to well over twenty guitar pedals (1700mA max!) Heavy duty output cable. Use with optional multi-plug cable(s) for powering more than one pedal. Guaranteed to work with over 90% of the effects pedals on the market! With optional converter plugs, the 1 SPOT will work with virtually ANY 9V pedal! Will even convert international voltage (100V-240V) automatically; no transformer needed! 3 meter (10') cable is almost twice as long as other adapter cables.