Flexible Colourful LED Matrix Panel App Controlled 20 x 96 Pixels Programmable LED Matrix Panel: Built around a bright, pixel-dense LED display It can be programmed to say what you want and generate high-resolution messages for drivers and promote a safer driving environment. Smart APP controls LED display: After the mobile APP is successfully connected to the LED display, you can edit text, DIY patterns, adjust the display brightness, and music rhythm. Colorful lights: This high-quality LED matrix panel not only emits high-intensity light, but also has low power consumption, and the full-color effect is brighter and softer without glare. 5V USB: Powered by USB interface, the surface of the LED display adopts epoxy waterproof technology. The 5V low voltage and waterproof performance increase the service life of the LED display.