Features: Works by giving a powerful electronic shock that kill rat, an alternative to toxic chemicals and dangerous traps. Compact cage-unit, doesn't occupy lot of room. Designed with safety protection switch, in order to prevent mistake electric shock to person. Powered by battery or power adapter, various choices to match your need better. Suitable for indoors, warehouse, factories, office, hotel, car parks and any places that rats usually appear. Descriptions: Works for Mice, Rats, Squirrels, Chipmunks and other similar rodents. Safe and reliable. With safety protect switch, in order to prevent mistake electric shock to person. Operation: Step 1: Put a piece of ham or bread (or any food rats prefer) into the cage deeply. Step 2: Insert 4 pieces of battery into battery compartment or directly use the DC-6V power adapter. Step 3: Identify location with rat activity look for worn trails or walkways. Place unit on the floor against a wall. Make sure the entrance in line with the trail, as Rats prefer to travel along walls. Step 4: Press switch to "On" position. Unit will be on, green LED will flash, indicating that the unit has been enabled. To prevent incidental electric shocks avoid contact with metal plates. Do not touch the bottom of the unit when unit is working. Specification: Color: Black Material: ABS Battery: 4 * 1.5V C battery (not included) Adapter plug: US plug Adapter input: AC 110-240V 50-60hz Static work current: 50uA High voltage working current: 380mA High voltage: 7000-9000V High voltage produced time: 4 minutes Low battery indicator: 4.8V0.2V Adapter cable length: 117cm Product size: 213*100*120 mm Note: Inappropriate use of this product may cause electrical shock, or serious injury. Never place this product around children, small household pets, combustible materials, etc. Never use this device on wet surface to avoid high voltage electric leakage. Package List: 1 * Electronic Rat Killer 1 * Power Adapter (Only US PLUG)