The Morley Twin Mix Guitar and Amp Switcher is a handy switching device that allows easy control of two guitars and two amplifiers. Select between either of two inputs, or both inputs with the tap of a footswitch and select or combine any combination of both amplifiers. Adjustable volume for both inputs. The Twin Mix allows for more flexibility by allowing quick access to two guitars AND two amplifiers without cumbersome and complicated Midi switching systems. The Twin Mix is manufactured in solid cold rolled steel housing and can be powered from one 9V battery or optional Morley 9V adapter. It comes equipped with LED indication and is True Bypass to maintain pure tone and instrument level. Although the Twin Mix was designed with guitarists in mind, it can be used anywhere an easy-to-use and cost-effective switching system is needed.