Intelligent bionic sport mode: Our intelligent rolling ball adopts intelligent bionic sport mode. In smart mode, the next button wakes up the simulated prey track. After turning around and hitting an obstacle, he wisely chose his escape route.BUILT-IN BATTERY: Our smart trackball has a built-in battery that can be charged via USB. Equipped with a charging indicator, it's very convenient: just open the silicone cover and insert the Type-C charging port to charge.Quiet rolling: the shell of this smart ball is wrapped in silicone gentle on the skin, so it is quiet when rolling. At the same time, the silicone material increases friction and takes into account the anti-occlusion force. Portable use: This smart ball is small, more suitable for cats to control it with their paws. At the same time, it is lightweight, therefore very portable. You can easily take it off and let your cat play at any time.High-quality material: Our smart ball is made of high-quality ABS material, durable and wear-resistant for long-term use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.