How to use?

1. Pull out the pen
2. Writing on the writing area directly with the pen
3. Press the remove button to erase the writing content Remark : Please replace a new battery when remove button without function.
4. How to Replace the built-in battery ? Lossen the screw , pull out the battery pack to replace new battery.
5. In case of losing the pen, please use a lanyard to connect to the pen.