*: LCD screen better protect eyes without radiation and glare. Perfect for kids,students, mom, elder and designers for shopping lists, note taking, homework and office memo. Lock screen function helps prevent accidental removal of important information. A fun, educational and practical gift for both kids and adult. Can be used over 100,000 times with one built-in battery. Specification: Material: ABS Plastic Size: 241 x 175 x 8.7mm / 9.49 x 6.89 x 0.34inch Battery3v210mahincluded Battery Modelcr2032 Writing Frequency100000 Times Surface Treatmentanti-dazzling Piece Weight187.5g Size Chart: A Thick Handwriting/Colorful Package B Thick Handwriting/Gift Package C Multicolored Handwriting/Colorful Package D Multicolored Handwriting/Gift Package Package Includes: 1pc LCD Electronic Writing Tablet(Random shipping colors) 1pc Pen 1pc Button Battery Note: 1. Product built-in battery, the same type of battery can be replaced after the end of electricity 2. After use of the battery can not be discarded 3. The product surface can not be used to draw sharp objects, otherwise it will damage the LCD film