If you shoot TWICEs AR photo card,A special video of TWICE is produced on the photo card.[ How to use ]1. Launch the app.2. Select the desired photo card from AR SHOP and download it.3. After downloading, go back and press the button (AR camera, circle) next to AR SHOP4. When the screen is switched to the camera, shine the downloaded photo card on the screen.[ Note ]The AR photo card you have is only recognized as a product for exclusive use of the TWICE AR mobile app.