This a unique product. Not designed to be a normal gate that fades and trails off the guitar signal to sound normal. It is a 'hard' gate that chops off the sound dead. Just a simple one knob operation.
It can be used as a 'smart gate.'
With a normal smart gate the pedal has normal in and out plus another in and out to put the noisy pedal or pedals in a loop. This pedal has an in jack but not an out? The vid will show you how this works but for the price of this pedal it should have that second jack.