"1. Very easy to use: Press the ""Delete"" button and all the written or drawn will fade out within a second. And anti-clearance function is there^2. Preset for the first time use, please click the lock button on the back if you want to delete writing content.^3. Very light and compact size of: So that the electronic writing board can be easily carried in a backpack, handbag, knapsack or briefcase.^4. Multi-functions: With this portable writing tablet you can record your ideas anytime anywhere With it, children can learn to draw flexibly anywhere without wasting too many sheets. It is a perfect gift for children, students, but also for designers, businessmen, teachers, etc.^5. Eye-optimized and environmentally friendly: This LCD writing surface does not emit any glare or radiation. Thus your eyes are optimally protected. The writing / painting tablet is paperless and therefore very environmentally friendly. Operated with a button cell battery