Ganzo G729-CA Folding Knife 440C Blade Camo G10 Handle G729 w/ Pouch & Box WORK EFFICIENTLY - The Electronic Rat Trap use micro-electronic circuit technology. It works by emitting a 7000V-9000V electric shock to kill rats and other rodents, without any possibility of escaping. Works for mice, rats, squirrels, chipmunks and other similar rodents. PLUG-IN or BATTERIES - The Electronic Rat Trap comes with a plug-in adapter. It can also be operated with 4 C batteries (batteries not included). The Electronic Rat Trap will emit a 7000-9000V shock when a mouse enters into the trap, and kill the rodent.