Classic rat zapper, works as a mice zapper trap as well as for average size rats, easy to use, insert batteries, bait, turn it on, place, & relax, hands free no touch, no view disposal, clean up is easy & it can be reused indefinitely, 1there is no blood, mess, chemicals, or poisons, high 8,000v 2 plate design delivers shock lasting 2 full minutes, red indicator light flashes repeatedly upon kill, set of 4 "aa batteries equal 20 kills, battery replacement notification, safe & sanitary, while always wise to use caution around kids & pets.