Features: Dual Mode Design: The product is designed with two modes, crazy mode(LED flashing fast) and normal mode(LED flashing slowly), to meet the play needs of different dogs, allowing pets to enjoy different fun. Radar trigger: Built-in microwave radar, when the pet approaches the ball, the radar will be triggered, increasing the interactivity of the pet. Automatic obstacle avoidance: Built-in intelligent sensor, will automatically move in the opposite direction when encountering obstacles, ensuring the safety of pet play. Waterproof design: IP54 waterproof level, can be used in various environments, easy to clean. Convenient charging: Built-in 500mAh battery, rechargeable, long use time, no need to frequently replace the battery. Specification: Optional Color: Blue-yellow / Green-orange / Orange-yellow / Yellow-green Material: TPU+ABS Battery: 500mAh Charging Voltage: 5V Working Mode: Crazy Mode/Normal Mode Waterproof level: IP54 Standby: 7 days Working: 4 hours Scope of application: Dogs cats and other pets Product Diameter: 85mm Product Weight: 220g Package Size: 90*90*100mm Package Weight: 266g Package list: 1 * Pet Ball 1 * Charging Cable 1 * User Manual