Features: Petlinks Romp Around E’Toys mimic the thrill of the hunt, encouraging even inactive cats to chase, pounce and leap, transforming playtime into exercise time. These electronic motion toys dash and jitter, mimicking the movements of real prey with a whisper quiet motor. * Electronic motion toy dashes and jitters, mimicking the movements of real prey with a whisper quiet motor. * Encourages cats to chase, pounce and leap, transforming playtime into exercise time. Comes with replaceable batteries.