Guitar effect pedal with four programmable loops and a tuner output. - Model Name: Chamaeleo tail loop - Features: 4 programmable loops - Tuner Function: With tuner output - Input/Output Terminals: Numerous Send/Return terminals - Power: 9V DC Thank you for viewing. This is a first-generation programmable switcher from One Control, which is now rare. LOOP4 is independent, so it can function as a footswitch for an amplifier. Most of the currently available ones are MkII or MkIII, so why not take this opportunity to collect the first generation?