1. Put out the pen
2. Writing on the designated area
3. Press the remove-button to clear the writing content, please replace the battery when not clear
4. Panel: handwriting clear
5. Battery: CR2020 button battery
2. Writing on the designated area
3. Press the remove-button to clear the writing content, please replace the battery when not clear
4. Panel: handwriting clear
5. Battery: CR2020 button battery