Ernie Ball 6165EB Vp Stereo Pan 98 Rohs Com 500K Stereo Volumepan PedalThe dual potentiometer has a 500k ohm resistance suitable for the audio path of passive or active instruments. Attached to the footplate is a switch that provides the user two operating modes (volume or pan). Use the A input A output for the left channel and the B input B output for the right channel for stereo signals. For use with stereo cable installations using TRS type stereo plugs, use the B input and B output. For use as a mono volume pedal,