"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"