The Eden Analog Cold Compress Compressor Pedal is a modern adaptation of a favorite vintage two-knob compressor. The Cold Compress pedal performs well as a signal boost or you can use it to get that popular percussive sound on clean guitar. Use it as a subtle background effect to get the sustain you need for soloing or as a limiter. No matter how you use it you'll find the Cold Compress to be a necessary addition to any pedalboard setup. Operates on 9v battery or optional power supply.