： This automatic cat rolling ball enabling your pet to play alone and enjoy it's own entertainment without any hassle, it's the perfect companion for your pet's playtime. Features: This smart roller ball keeps pets active and entertained by mimicking the instinct to chase and play. With fast(blue light), slow(purple light) and interactive(green light) motion modes that can stimulate your cat's interest. Adopts dynamic texture, making the ball more stable during movement while increasing friction with the ground. It's adorable tail mimics the movements of it’s prey, allowing indoor cats to play happily. When the interactive cat ball encounters an obstacle or a narrow place, it reverses and moves out of the way. Built-in 200mAh lithium battery, the pet toy delivers 70 mins of active play per charge and just need 1.5 hours charging time. This automatic moving pet ball is suitable for both dogs and cats of all sizes and ages. Specifications: Material: Plastic, Silicone Battery Type: 1 x 200mAh Battery Charging Time: 1.5 Hours Working Time: 70 Mins Power Supply Method: USB Charging Cable ( Power Adaptor Not Included ) Ball Size(LxWxH): 8.5 x 7.5 x 7.5 cm(Approx.) Package Contents: 1 x Pet Toy Ball 1 x USB Charging Cable 1 x User Manual Please note: Due to manual measurement, there might be a tolerance in the product size. Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance.