This MUTE switch is a handy pedal to have for the simplest of things, such as tuning. Admit it, we have all known someone who has needed one while getting their axe tuned up! If your tuner doesn't have a way to mute your signal and you don't want to mess with your levels during a gig, than this pedals for you. A mute switch like the Shush Box is also a great pedal board addition if running some odd setups with more than one amplifier. It gives the musician more control over the second amplifier in situations that call for an effect change that would otherwise only be heard on the first amplifier when a pedal board signal is split between both amps (ie changing from dirty channel to clean while using an effects pedal such as TC Electronics Mimiq that splits and doubles your guitar signal). As always, every Buzz Effects pedal is true bypass and contains a genuine Buzz Effects circuit board for the utmost reliability in design and quality!