Innovative Interactive Design: This vibrating ball has automatic shaking and vibration functions, imitating the dynamics of real prey, attracting your pet to actively participate. Built-in multiple sports modes, giving pets more diverse entertainment methodsLED Lighting Effect: Equipped with a bright LED light ring, it can be clearly seen in a dim environment, adding fun to night walks or indoor gamesBite-Resistant Material: Made of high-strength TPR material, it is bite-resistant and wear-resistant, designed for active dogs; the surface is non-slip textured for easy grip, which increases the safety and fun of the gameSmart Activation: When your dog touches or bites it, the shaking dog ball will automatically roll and rotate for 5 minutes or bounce wildly for 5 minutes, and then enter standby modePortable and Easy to Use: The lightweight and portable design (2 inches) is very suitable for carrying when going out for a walk or traveling; USB fast charging, strong battery life, meet daily use needsItem Name: Rolling Ball ToyMaterial: TPRBattery Capacity: 200mAhFeatures: Interactive. Automatic Moving, ElectricSize Details:Diameter: 5.2cm/2.05" (Approx.)Package Includes:A,B,C,D,E,F:1 x Rolling Ball Toy1 x Charging CableorG, H, I, J:2 x Rolling Ball Toys2 x Charging Cable