Product DescriptionThe 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, use the A input and A output. For use as a typical pan pedal, switch the toe tap switch to the pan position and use only the A input. The pedal will pan the signal between the A and B outputs. Overall Volume Pedal dimensions: 4" W x 11" L x 2 3/4" H. Part number 6165.From the ManufacturerThe dual potentiometer has a 500k ohm resistance suitable for the audio path of passive 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, use the A input and A output. For use as a typical pan pedal, switch the toe tap switch to the pan position and use only the A input. The pedal will pan the signal between the A and B outputs. The design and development of the Ernie Ball pedals has been a team effort of guitar players and craftspersons within our company. Pedal bodies are an aluminum extrusion rather than a casting resulting in greater strength, uniformity, and smoother surfaces. Clear anodized grain finish insures lasting beauty. Overall dimensions: 4" W x 11" L x 2.5" H. The main pivot shaft is of centerless ground 1/2' diameter stainless steel, precision seated though nylon bushings at both ends. The large center shaft diameter, in addition the strength factor, creates a broader stress bearing surface. Our bodies and shafts are designed to give the player an indefinite service life! Deck mat of non-slip material is impervious to oil, alcohol, and most things you might spill on it. Quick disconnect wiring harness allows changing the pot without soldering. Tough long lasting Kevlar cable transmits pedal travel to the controls and is attached by stainless steel springs. This drive design results in smooth and quiet operation qualities lacking in gear driven models. Cycle tests are made on every pedal to insure perfect operation prior to packaging.