1、5V USB POWERED OPERATION: Easily show advertising effect with clear patterns, versatile display methods, and shiny light beads. Upgraded voltage technology of 5V USB, extremely low heat, touchable, and safe to use. Ideal for electric cars, DIY personalization while driving. 2、CUSTOMIZABLE DESIGN: This LED sign can custom text, pattern, and animation, allowing you to create exclusive signs based on your creativity. Change display content according to usage scene for personalized touch. 3、BLUETOOTH CONTROL: LED sign is controlled by a Bluetooth connected app, supporting multiple connections at once. App features interesting patterns and animations for easy customization of texts and patterns. Music mode adds passion. 4、FLEXIBLE AND WATERPROOF: Thin and light LED sign with USB interface that can be bent and folded. Glue drop technology surface is IP64 waterproof, directly glueable to car glass for convenient installation and easy portability. 5、MULTI LANGUAGE AND VERSATILE USAGE: LED signs available in multiple languages and suitable for various places such as holiday parties, weddings, camping, bars, hotels, stores, and cars.