Feature: 1. For business people, designers, engineers, teachers, students and doctors, etc. useful and environmental-friendly. 2. As a family message board to ver your love to your family, can be placed on the table and desk. 3. Class notes, drafts, and scientific equations to solve mathematical problems.Good helper for students. 4. Easy to cultivate children's writing, calculus, painting abilities, learn with fun. 5. Light and easy to carry, and can be recycled, let deaf people communicate easier. Specification: Suitable Age: Above 2 years old Model: AS1044A Material: LCD panel and ABS borderABS Color: Black, Pink, Blue Power supply: CR1220G button cell(included) Battery capacity: 75mAh Voltage: 3V Reflectivity: 25%-30% Input and write pressure: 100-200g Standard current: 0.1mA Screen size: Approx. 92*66mmmm/3.62*2.59'' Package size: Approx. 150*100*10mm/5.9*3.93*0.39'' Product size: Approx.118*89*4.5cm Net weight: Approx. 33g Gross weight: Approx.50g Package Include: 1 x Writing Tablet (Built in CR1220G Button Battery)     1 x Stylus Pen Kindly Notice: Please allow 1-3cm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.