?Durable and Safe? 1. Pet ball is BPA-free and made of sillicone, which is durable and safe for cats to play, bite,and lick. We suggest your supervision during the play and instruct your pet how to interact for the first time 2. The diameter of toy ball is 40mm. It is not suitable for medium and large breeds of dogs. 3.Baytion cat toy Interactive is not waterproof. 4. If you receive a defective ball or charging cable, please feel free to contact us. We will send you a new replacement. ?Type-C Rechargeable Electric Toy?No need for battery replacement is not only convenient but also economical. A fully charged (1 hour) cat toy can be used continuously for up to 2.5 hours and stand by last for 6 hours, which provides long-lasting power for your cat's entertainment. If you find that cat toy is unresponsive or slow, just open the detachable silicone cover of button and connect the cable. Blinking red light means low battery wihle staying green light indicate it is fully charged. ?Automatic Cat Toy Playmate?Rolling cat ball will change its direction automatically when hitting with obstacles such as wall, table and door with inside motion sensor. Moving cat toys will self-roll and bounch in a random and unpredictable way, keeping your cat excited and agiled to keep them entertained and active. NOTE: Interaction with ball on hard floor, tile floor and thin carpet. Not recommended on the thick carpet. ?Smart Rest and Motion Activated Toy?Automatic cat toy will automatically enter standby mode after 15 Seconds to save power if there is no touch and interact. Cat ball will restart by any touch because of the motion-activated system until no power supply. Under standby mode, the cat ball will flash lights alternately to attract cats to join in the game. Intelligent mode can interacte with pet to having fun without lonely and keeping healthy at the same time. ?Cat Toys Interactive with 2 Modes?Baytion cat toy interactive ball is designed for active, bored and timid indoor cats and kittens. It has 2 avaliable modes: Normal Mode nad Crazy Mode. Upon being turned on, it will automatically move with intense rolling, vibrating and bouncing in different frequency choosing , among which you can switch to fit for different cat plays. And LED flash lights adds to the excitement and attraction of the toy.