• Integrated motion sensor that activates the toy's automatic rolling and spinning. • Multicolored flashing lights to increase pet attention and fun. • Made of durable ABS, silicone, and TPR materials, resistant to bites. • IPX5 waterproof rating, suitable for indoor and outdoor use. • 800 mAh rechargeable battery with full charge in 1.5 hours via Type-C cable. • Intelligent obstacle avoidance function that allows the ball to change direction automatically when it hits something. • Detachable shell for easy surface cleaning with water or a cloth. • Design with an 85 mm diameter, specifically indicated for medium and large breed dogs.