Built in a larger box, The StagePro has inputs for an Obel equipped guitar (labeled OBEL and GUITAR) and for a traditionally wired Auxiliary instrument (labeled AUX) as well as the jacks for effects SEND and RETURN and AMP. Instead of a toggle switch, The StagePro has a foot swtich with LED indicator lights to switch between the 2 modes. The StagePro utilizes a unique True Bypass switching configuration that totally disengages the instrument not in use from the signal chain. You can now switch between your OBEL equipped guitar AND a traditional input auxiliary instrument (pedal steel, mandolin, violin, keyboard, guitar etc) with just the stomp of a switch. The HubBub StagePro accommodates both Obel guitar and Auxiliary instrument AT THE SAME TIME. Please note: Like the original HubBub, the StagePro functionality is totally passive and will work perfectly without any power. The Hub Bub Stage Pro is made by Godfrey Daniels Guitar Works.