Used only for testing and stored at home, with very little actual use. Operation has been confirmed. This is a curler type that creates a natural curl from the base to the tip of the eyelashes without breaking the roots. With double pads to firmly lift the eyelashes at the outer corners of the eyes, and two built-in heaters, the curl lasts longer. Power: Dry cell batteries (AAA x 2) Batteries not included. No instruction manual, only the main unit. For those who can accept home storage, thank you.