Material:ABS/Silicone Diameter:About 1.65in / 4.2cm Battery capacity:80mAh Battery life:About 90 minutes on a full charge High gualityFood grade ABS material, no pressure for cats to bite. 42mm42mm "claw control" is different from the traditional rolling ball size on the market, and is more suitable for the cat's "sense of control" of primitive hunting IntelligentIn intelligent mode, you can wake up by patting, simulate the escape trajectory of prey, roll and hit obstacles, and then intelligently choose the route to avoid QuietGive the cat a strange night and give you a quiet sleep. 90% of the cache material package in the outer layer, rolling quiet, day and night, play if you want. Bite resistance and durabilitySoft and skin friendly silicone wrap, in addition to rolling quietly, increases friction, and takes into account bite resistance and durability. About Charging: 1.Blinking red light: battery is too low and needs to be charged 2.Blinking blue light: the product is charging 3.The green light stays on: charging is complete, please fully charge it for the first time Package Contents: 2* Smart Ball and Type-C Cable Notes: 1.Turn on the smart ball: short press the on-off key 2.Switch mode: After turning on the smart ball, long press the power button 3.Smart mode (the blue indicator light stays on for 3 seconds), automatically enters standby mode after running for 3 minutes, reactivates the ball to turn on after slapping,4.In normal mode (green indicator light stays on for 3 seconds), the ball will automatically turn off after 3 minutes of o peration.