The Quiklok VP26-22 Stereo Volume Pedal features a high-performance custom potentiometer for long-lasting life and can be used for controlling two instruments at the same time, such as two keyboard instruments or guitars, or both keyboard and guitar. This pedal is built with two 1/4” (6.3 mm) input jack sockets for connection to the instruments and two 1/4” (6.3 mm) output jack sockets for connection to the amplifier. The pedal comes with a heavy metal base for stable and safe use, and an additional external potentiometer that allows for manual sensitivity adjustments.