Features: 1.Suitable for business people,designers,engineers,teachers and doctors. 2. Used as a family message board, can be placed on the table and desk. 3. Class notes, drafts, and scientific equations to solve mathematical problems. 4. Easy to cultivate children's writing, calculus, painting ability.Gadgets make study fun. 5. Light and easy to carry, and can be reused, help deaf people communicate easier.specification:Product name: LCD screen writing board Material: ABS + LCD screen Color: Black, White, Blue, Green, Red Screen Size: 4.4 inches Product size: About 118*98*4.8mm Reflectance: 25%-30% Input pressure: 300Gg Net weight: 50g Power supply: Button cell Method of use: 1. Use the pen of electronic writing board to write and draw, and the lines of different pen pressure are different in thickness. 2. Press the clear button to clear the content on the tablet Attention: Do not expose to sunlight. Do not wash. Keep away from fire. Do not scrape the surface with hard objects.PackageList:1PC* LCD screen writing tablet 1PC* Pen Note1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.