1. Flexible LCD screen, no blue light, no backlight, protect your eyes 2. Smooth writing, just like real paper 3. The handwriting lines can be controlled by writing force 4. No ink required, healthy and environmentally friendly 5. Built-in battery, suitable for USB charging 6. Equipped with a magnetic pen, which can be adsorbed on the edge of the drawing board 7. With one-button clear / lock function to prevent accidental touch 8. Size: 16 inches 341x239mm, 21 inches 463x299mm, 28 inches 601x400mm, 40 inches 803x605mm
