Using the Catit Senses 2.0 Ball Dome is easy. First, insert 2x AA batteries (not included). When your cat walks past the toy, it gets motion - activated. The sound of the tilting plate and rolling ball will attract your cat. You can choose between two play modes: slide the slider to the left for continuous play or to the right for motion - activated play. To remove the ball, hold the dome upside - down. For extra excitement, you can screw open the ball and insert a bell or spray catnip on a cloth and put it inside. When your cat stops playing, the toy will automatically go to sleep to save battery. As for maintenance, wipe the outside of the toy with a damp cloth. To clean the inside, carefully remove the green dome cover following the instructions. Remember, the toy is BPA - free, but keep it out of reach of small children.