Using your Batman Beyond Batarang prop is super easy. First, make sure the 3 included button cell batteries are properly placed. To turn on the blue LED lights in the wings, just find the small switch and flip it. When you're done using the lights, turn them off to save battery life. As for maintenance, keep it in a dry place to avoid damage. Don't expose it to extreme temperatures or rough handling. If you notice the lights getting dim, it's time to replace the batteries. Enjoy showing off this cool prop!