Mix-Blender

Multi-function footswitch

The Mix-Blender™ is a multi-function pedal that lets you mix two instruments or pedals together and then send the signal through a footswitch-controlled effects loop for processing.

Mix two instruments or effects together at the same time
Blend in effects while retaining the tone of your instrument
Class-A buffered inputs with individual level controls
Opens the door to creating subtle or unique effects

https://www.radialeng.com/product/mix-blender