Excelvan IP44 Waterproof Solar PIR Motion Activated Sound Flashlight Animal Bats Bird Repeller, Day and Night Working Mode HOW IT WORK - Excelvan Ultrasonic Animal Repeller eliminate pest problems by continuously transmitting sound of gunshot, dog barking, eagle sound technology and flashing LED strobe lights. Equipped with an PIR infrared motion sensor, you could select mode to frighten the intruding animals and pests as Birds (Pigeons, Woodpeckers, Seagulls, etc.), Cats, Dogs, Boars, Squirrels, Rabbits, Skunks, Bats, Rats, Foxes, Raccoons, Mice and much more. Day and Night working mode for choose. EASY TO INSTALL - Can be mounted in the ground with the provided aluminum stick, or hung on a wall or tree using the slot on the back. Perfect for yards, patios, basements, garages, attics, porches, boats, gardens, Farms, ponds, etc. HUMANE & ENVIRONMENT FRIENDLY - No toxic chemicals or pesticides, no traps, no dead animals. The repeller get rid of animal by ultrasonic and powerful flashing LED strobe lights to frighten the pests/animals to leave the area. Offers great pest protection for almost everywhere. WEATHERPROOF & WATER-RESISTANT - Solid hard plastic construction for withstanding years of rain, snow, ice and wind. Great quality. SOLAR & BATTERY POWERED - Powered by a solar panel on top of the device that harnesses the sun's energy, or 4*AA alkaline battery (included).