1The interactive dog toy will automatically make a dog sound and shaking motion for 12 seconds when it is opened and it is activated again by shaking or strong touch. 2The ball has functions of dog barking, bouncing and shaking motion sensors, and the puppy will feel that it is more than just a quiet doll, and be very excited to chase, bite and run. 3The cute plush cover is washable and reduce the chance of the dog's disease, and you can take out the ball and clean the protective cover. 4Dogs like to run to catch plush bouncing balls. When you leave, this ball will accompany your dog, and it can help your dog exercise more and have fun at the same time. 5When putting the ball into the toy, please turn on the switch of the ball and stick it tightly to the back of the blue monster to prevent it from falling during use. When not playing, please turn off the switch.