1. The flashing eyelashes is fashion accessory on the eyes, cool. 2. LED lashes can reusable. 3. This flashing LED lashes adheres to your eyelids using your favorite lash adhesive and use super thin and hardly visible wires routed to the controller. Then stick the controller on the back of your head, hidden under a wig. 4. The controller power by a button battery (battery not included) and boasts a responsive motion sensor programmed with several unique light effects. So yes, this means, the LEDs display a variety of light shows depending how you move your head. 5. 2 x button batteries (3V) will power the LED lashes for more than 4 hours. 6. Light color: Red, Green, Blue, White, Yellow, Orange, Purple.