12-bit display Using 5-inch high-definition screen With multiple calculations No blue light, no radiation, both calculation and writing give you the texture of writing on paper Digital logo is clearly displayed, the buttons are light and textured, comfortable to touch, beautiful and generous Colour: Black Material: ABS Screen size: 5inch Package Contents: 1x Calculator Writing Board 1x Writing Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Calculator Portable Calculator Calculator Writing Board Mini Calculator Calculator Notepad