1Programmable LED Screen: The LED backpack features a 3D waterproof hard shell and a programmable LED screen. The LED screen supports 48x48 pixel image animation and allows for Diy display of text, images, GIFs, and animations. 2Easy Control via Bluetooth and App: Control the LED display screen effortlessly by scanning the Qr code and downloading the app. The Bluetooth and app control feature makes it convenient and practical for users. 3Personalized Style with Built in Images: You can choose from a variety of styles, fonts, and background colors to customize the LED display screen and enhance the fun of your ride. 4Ample Storage Space: The LED backpack offers enough storage space, with multiple independent compartments for storing cosmetics, tissues, keys, textbooks, phones, umbrellas, and sports equipment. 5Fashionable and Cool: The riding backpack features a fashionable and cool LED display screen design that makes you stand out. It is suitable for various outdoor activities such as motorcycle riding, hiking, traveling, and business trips.