uxcell LED Badge Digital Scrolling Message Name Sign Display Portable Rechargeable US plug Red Installation - Download the software, Install the USB Driver in your computer , Open the software to input text. Easy to use, programmable through your PC, supported all windows version, not available for IOS. 4 classes brightness: 25%, 50%, 75%, 100%, adjust by long press the button in the back. Storage: 1500 English characters, 675 Chinese characters, 6 text, 2 graphic image. Power by rechargeable Lithium battery, it can run 8-16 hours.