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- Use the ink pen to write secret words or messages, the writing will disappear when the ink is dry. Only when you shine the light on the cap to them, the secret behind reveals
- For saving batteries life, plug the write card tag back to the pen when you don't use the light
- Please don't shine the light directly to eyes
- Choosing a selection results in a full page refresh.
- Press the space key then arrow keys to make a selection.
- Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device