Smart APP Control: This Bluetooth app-programmable LED car sign is battery-free and eco-friendly, controlled via a mobile app. Supports multiple file formats and smart scrolling display. Smart, lightweight, and easy to use. Customizable Function: Design your LED sign to fit your needs and scenes. DIY text, patterns, animations, hand-drawn graffiti, music rhythms, and adjust brightness and speed. This digital sign perfectly meets your needs. Flexible Circuit Board with USB Connector: The ultra-thin and lightweight LED sign can be bent and folded as desired. The 5V USB connector is designed for portability. Includes 3m tape for easy wall or object mounting. Colorful Lighting: Utilizing 2121 RGB lamp beads, this high-quality LED matrix panel emits high-intensity light with low power consumption. The full-color effect is brighter and more attractive, increasing the lifespan of the LED matrix panel and achieving IP66 waterproof rating. Wide Range of Applications: Ideal for holiday parties, weddings, camping, bars, hotels, shops, cars, exhibitions, trade shows, refrigerators, and offices. Also perfect for Christmas, New Year's, and Easter.