Paperless memo pad. Suitable for designer, businessman, teacher, students, and artist. Environment-Friendly. Make note, draft. Use for math and scientific formula. Leave a message for your family. You can put it on the table, desk. One Button to clear all. (When it can't be cleared, please replace the battery). Working Temperature: 5-40 centigrade; Don't soak in any liquid. Avoid sharp objects write on the board to avoid collision scratch. Don't disassemble the product on your own.
How to use: Pull out the pen. Writing on the writing area directly with the pen; Press the remove button to erase the writing content; Remark: please replace a new battery when removing the button without function. How to replace the built-in battery? Loosen the screw, pull out the battery pack to replace new battery.
