A4 LED Drawing Board - Perfect for sketching, 2D animation, stencil, tattoo, diamond painting, calligraphy Adjustable Brightness - Touch switch to adjust brightness; Smart brightness memory of last use Super Slim Design - 7mm acrylic board, easy to take out; Tablet size for easy transport Eye-protective Technology - Hidden LED provides enough brightness & perfect illumination USB Powered - USB Type-C power cable to connect to any 5VDC output; Measuring border to scale work & 4 magnets to hold paper