Ahhh! A RatZapper is a mouse / rat "trap." It uses batteries to provide an electical shock to the little rodent and it kills them immediately. No squeak, no SNAP! no mangled, not-killed mousies. No poisons. The mouse enters the trap and goes to the back to get the dry cat kibble "bait" (just a couple of kibbles will do) and steps on the metal floor plate, completing the electrical circuit. ZAP!
A little red light on the top of the trap begins to blink, indicating it's been activated.
Ya pick up the trap, look inside, and then dump it, never having to touch the rodent's body at all. I fling the bodies into the yard and my chickens make short work of the carcass. Nice source of animal protein for 'em, too.
You reset the trap, put it back down, and wait for the next mousie to enter.