Play Toy Ball for pets Interactive Random movement 360 Degree Self Rotation Micro USB Charging Compatible with the universal smart phone's 5V charger. Battery Indicator Get reminded of the remaining power. Hidden Switch Prevent accidental switching with hidden switch Tiny but Mighty The high efficiency mini DC motor inside delivers long lasting power. Large Battery Capacity and Long Lifespan The high-quality lithium battery of 320mAh is built inside. Charging once gives you 5 hours of teasing time without hassling to change the battery frequently. Life should be green and easy! Shake switch Hold this ball and shake it to turn it on or off Random rolling This ball moves randomly, unpredictable. Cat and dog chase it along the way Battery life of 5 hours When turn it on, it can continue 5 hours rolling movement Catnip Chamber inside Unique catnip chamber inside making adding catnip so easy. Replace the catnip which your pet likes inside if your pet is not interesting.