The Dyson Corrale straightener has a Flight-ready feature that disconnects the battery, designed to adhere to International Civil Aviation Organization (ICAO) regulations. Airline approval is required in advance if you're travelling with a battery-powered heat-producing product, so we recommend contacting them before you travel to let them know. Then you'll need to remove, rotate and replace the Flight-ready tag with the black arrow in the Flight-ready position before airport security. It needs to remain in this position throughout the flight. Please note that regulations in Japan mean you will not be able to fly in or out of any Japanese airports with your straightener.