The Fox Den Automatic Cat Toy keeps your cat active and entertained with a motion activated fox tail that shakes back and forth then disappears. After installing the batteries (not included), turn the toy on with the press of a button, and it will begin flipping the fuzzy fox tail around, encouraging your cat to stalk and pounce on it. After 10 minutes of playtime, the toy will automatically shut off to let your cat rest, and it can be turned back on at any time. Hold down the power button to turn on “Play While You Are Away” mode. This mode turns the toy on for 10 minutes every two hours. After three 10-minute playtimes, the toy will shut off until you turn it back on. While in this mode, the motion sensor is activated, automatically turning the toy on when nearby movement is detected. By encouraging your cat to exercise and providing mental stimulation, this toy helps keep your cat happy and healthy.