Using the The Flash Hero Set is super easy. First, put on the mask. You'll notice that when you move the visor, it activates 10 + unique sounds and lights. The ring is also part of the cool look, so slip it on your finger. When it comes to the batteries, since Duracell batteries are already included, you can start playing right away. But when the batteries run out, remember to replace them with the same type of Duracell batteries. As for maintenance, keep the set away from water and rough play to avoid damage. Also, store it in a dry place when not in use. This way, your child can keep enjoying the set for a long time and keep pretending to be The Flash.