Item Type: Interactive Dog Ball Toys Material: ABS Use: Pet Intelligent Rolling Ball with Light Battery Type and Quantity: (Shipped with Built in Battery) Ball Toy: 1 x 18650 1000mAh Lithium Battery Remote Control: 1 x CR2032 240mAh Button Battery Package List 1 x Ball Toys 1 x USB Data Cable 1 x Remote Control 1 x Instruction Manual 1 x Button Battery 1SAFE MATERIAL: Active dog ball toys made of ABS, is a healthy material, pets can play safely, will not cause choking hazards, attractive to pets. 2GENTLE MODE: Too aggressive mode will scare the pet, in order to improve the pet's experience, gently rolling on the floor, will not damage the floor. 3INTERACTIVE TOYS: Dog automatic rolling ball can easily interact with pets, is the best choice for interaction with pets, will not make too much noise, and will not hurt the pet's mouth and teeth. 4REMOVABLE DESIGN: Remote control dog ball toys have a removable shell, the shell of the ball and the rotating machine are not integrated, so the shell can be removed separately for cleaning. 5EASY TO CLEAN: When the surface of the ball becomes dirty, it can be easily and conveniently cleaned with cloth or water without damaging the machine itself.