Amazon.com: LED Hats, LED Display Screen Baseball Caps with 。Smart LED Hat with APP Control-This innovative LED hat allows you to customize your display with ease via the \"LED Controll\" app. Compatible with both iOS and Android, it’s perfect for those looking to stand out with a personalized LED display hat. Whether you\'re showing off your name or creating fun patterns, the app makes customization quick and simple. Versatile LED Display Cap-This LED display hat is equipped with 512 LEDs (16x32 grid),features a detachable LED screen, so you can use it as a standard baseball cap whenever you choose. Whether it\'s on or off, you’ll enjoy the comfort and stylish look of this adjustable cap, which fits head sizes from 22-23 inches (56-59 cm). Eye-Catching LED Scrolling Hat-Make a statement at parties, concerts, or sporting events with this unique LED scrolling hat. Display moving text, images, or graphics that are sure to grab attention. It\'s a cool and interactive accessory that turns heads wherever you go, letting you express yourself with every step.