1,Touch switch design, click on the key, 3 levels of brightness can be adjusted at will 2,High-transmittance and high-quality panel, transparent and no impurities 3,Uniform light eye film to make the light source more uniform and whiter 4,USB connection, easy and fast to charge 5,LED light source, high brightness and no flashing 6,Covered design, no light leakage and more eye protection 1 x Copy Board 1 x USB Cable 1 x User Manual Item Type: LED Copy BoardFrame Size: Approx. 470 x 370mm or 18.5 x 14.6inWorking Area: Approx. 430 x 330mm or 16.9 x 13inLight Source: LEDWorking Voltage: 5VDimming Button: Touch dimmingNumber of LEDs: 80Illuminance: 3800 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store