Pet Toy Remote-control Ball Two Working Modes Low Noise Design Long Battery Life Safe Material Automatic Obstacle Avoidance Interactive Dog Toys Jolly Ball Herding Ball for Dogs Cat Ball for Pets' Fun. Features: Two Working Modes: This intelligent interactive pet dog ball has two working modes, normal mode, and crazy mode, which can adapt to the activity needs of different dogs and increase the fun of pets. Low Noise Design: The noise of the product is controlled below 20dB, which will not interfere with pets and will not affect the quietness of the home. Remote Control: Equipped with a remote control, you can remotely control the switch, mode switching, light flashing and reverse rotation, which is simple and convenient to operate. Long Battery Life: It uses Type-C charging, a built-in 250mAh battery, charges for 1.5 hours, and can work for 4 hours, meeting the needs of pets for long-time play. Safe Material: The surface of the ball is covered with a 4mm thick rubber sleeve, which is safe for dogs' teeth and will not cause harm. Automatic Obstacle Avoidance: Built-in intelligent sensor, when encountering obstacles, it can automatically move in the opposite direction to avoid collision. Specification:  Available Colours: Orange / Blue / Green Material: Silicone + ABS  Diameter: 60mm Battery: 250mAh  Charging Voltage: 5V Operating Mode: Crazy Mode/Normal Mode Waterproof level: IP54 Standby: 7 days Always working: 3 hours Scope of application: Dogs, cats and other pets Product weight: 119g  Package size: 80*80*75MM Package weight: 145g  Package list:  1*Ball 1*Instruction manual 1*Data cable 1*Box 1*Strap