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 methods LED 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 games Bite-Resistant Material: Made of high-strength TPR material, it is bite-resistant and wear-resistant, designed for active dogs; the is non-slip textured for easy grip, which increases the safety and fun of the game Smart 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 mode Portable 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 needs Specification: Material: PC+TPE Product size: about 5.2x5.2cm/2.05x2.05 inches Battery capacity: 150mAh Charging time: 40 minutes Packing List: 1* dog toy ball 1* charging cable 1*instruction manual