SSSCat Automated Spray Deterrent is a harmless way to keep your cat or dog away from counter tops, by trash cans, rooms, furniture, and areas in your home. The motion-activated sensor detects your pet as it approaches to the forbidden area up to 3 feet. When your pet is detected, the SSScat sends a quick, safe spray that startles your pet. Your pet quickly learns to avoid areas that are off-limits. Requires 4 AAA-batteries (not included).