Feature: 1. Equipped with a professional writing simple, easy to operate. 2. High efficiency, erase the delete button that touches your picture. 3. The LCD inductive writing surface makes your writing or painting without any delay. 4. Lightweight and portable, suitable for school, office, family use or other use. 5. Long Battery Life of Upto 3 Years on continuous use.6. Built in replaceable button battery to facilitate the power of replacement. Specification: Size: 8.5 inch Materials: ABS + LCD Color: Black Application: 1. It is suitable for business people, designers, engineers, teachers, students, doctors and so on. 2. It can be used as a family message board for your family, and your love can be placed on a table. 3. Good helper: Students' notes, drafts and scientific equations to solve mathematical problems.