Specifications: The writing tablet is nonradiative, which can protect your eyes from fatigue. Adopting dual power supply modes, the product has longer standby time.The multifunctional and practical product can not only be used as calculator but also writing tablet. Due to its elastic and soft buttons, the calculator can give you comfortable using experience.Made of silicone and ABS material, the writing tablet calculator is lightweight, eco-friendly and durable to use.The length of the calculator writing tablet is 12cm, width is 9.5cm and thickness is 1.5cm. It is ultra-thin and pull-out, which is convenient to carry it with you.The calculator writing tablet is suitable for study, doddle and so on.Item Name: Calculator Digital Writing TabletMaterial: ABSColor: Black, White, GreyScreen: 4 Inch LCD ScreenPower Supply: Solar Energy, Button BatteryBattery: 1 x CR2025 Button Battery(Included)Features: Multifunctional, Pull-out, Ultra-thinSize Details: 12cm x 9.5cm x 1.5cm/4.72" x 3.74" x 0.59" (Approx.)Notes: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Package Includes: 1 x Digital Writing Tablet Calculator 1 x Stylus1 x User Manual