All Livingston Lures are water activated. The contact points are the eyelets that hold the hooks and the brass contact points.  When the lure comes in contact with water, it completes the circuit between both eyelets and activates the lure. You can simulate the connection by placing your fingertips on eyelets and brass contact points at the same time. Hold the lure close to your ear (not too close though) and listen to the sound of a distressed Shad, Crawfish, Original, or Silent. In order to change between the sound press the right brass contact point only after activating (example in video below). While it may sound like a chirp to us, to a predator it sounds like a dinner bell.