Here's what Walrus Audio say about the Audio Transit 4 Clickless SwitchTransit 4 Clickless is a 4-Channel True Bypass Switcher system useful for organizing your pedalboard and giving your pedals the benefit of True Bypass. The Transit can also be used to create a Signal Loop, which may contain any number of pedals all activated by a single switch. These pedals are effectively True Bypass as well.
Transit can be powered by a 9V DC power supply (not included). The use of an isolated power supply is recommended for powering all Walrus Audio Pedals. Daisy chain power supplies are not recommended.