This is a universal, lightweight passive expression controller pedal designed to wok with all M-Audio MIDI controllers that have an expression pedal input.
A polarity switch to the base also allows compatibility with most other brands of controllers, keyboards and guitar effects.
It works well with no noise.
The pedal come pre-connected to a 1.8m 1/4 inch TRS cable.
Fairly solid lightweight plastic case with rubber padsto top ad 4 rubber feet
Tested and in full working order.
Passive controller so needs no power supply.
Excellent condition
No box or instructions