Smart Auto-Bounce Technology. This interactive dog ball features an intelligent motorized core that activates erratic bouncing and rolling, mimicking prey-like movement to trigger your small dog's natural chase instincts. Durable And Non-Toxic. Made from BPA-free, non-toxic TPR rubber, this interactive dog ball can accompany puppies in a friendly manner, ideal for teething puppies or energetic small breeds. Rechargeable And Waterproof. Dog interactive toys use Type-C charging for 30 minutes, working for 1 hour continuously. IPX5 waterproof design allows outdoor use on grass or wet surfaces. Easy To Clean And Portable. Interactive dog toys waterproof surface wipes clean in seconds; compact size fits in travel bags for indoor and outdoor adventures. A must-have small dog toy for busy pet parents. Easy To Use. When you get our dog ball, just press the switch to use it. After 10 minutes of operation the dog ball automatically shuts off. Reminder: Not suitable for dogs with strong chewing ability.