Suitable for designers, business man, teachers, students and more. 1. A good helper for students to make note, draft, use for math scientific formula. 2. A warm reminder for leaving messages to your families, lovers, and you can put it on the desk or hang it on the wall. 3. A meaningful learning toy for your kids or toddlers to develop a good habit for drawing, writing. Durable and replaceable battery: Built in durable battery, easy to be replaceable, support to work more than 100,000 times. Specification: Material: Eco-friendly ABS + Soft LCD Size: 8.5 inch Input voltage:3 V Frequency: 1HZ Battery: CR2016 button battery Package Included: 1Pcs Electronic Writing Tablet 1Pcs Writing Stylus Note: 1.Normally one button clear all thing. Please change battery when it cant be clear. 2.Dont let board soak in any liquid. 3.Dont use sharp stuff to touch surface. 4.Screen unable to show clear in dark room and strong sun shine. 5.The screen might got tiny scratches after use a long time. 6.Writing tablet can't connect to computer and can't save images. 7.Avoid using in the following condition te