Product details:

Keep cats, dogs, deer, rabbits, herons, raccoons, large birds, and other animals out of off-limits areas. Silently senses movement and then blasts water for 3 seconds. Animals leave the area and avoid it in the future. After waiting seven seconds, sprinkler is ready for next intruder. Uses 2 to 3 cups of water per deterrence. Water is sprayed only over area to be protected. Easy to install, move, and store. Uses one 9-volt battery. Dimensions:7.3 x 3.6 x 12.6.