content: this LED sign can display custom text, patterns, and animations. design your own exclusive sign according to your creativity and ideas, and you can also change the display content to suit different usage scenes. Visibility, brightness and safety: the scrolling LED sign provides clear patterns with versatile display methods. the light beads are bright, and the LED signs use upgraded voltage technology of 5V USB, extremely low heat, touchable and safe to use. and it is very friendly to electric cars. show your sign while driving. Power and safety features: supports 5V USB power with low heat operation, making it touchable and safe for handling. Bluetooth control and multi display: the LED display is controlled by a bluetoothconnected app and supports connecting multiple led displays at the same time. the app includes many interesting patterns and animations. the phone makes it easier to patterns and texts, and the music mode enhances the experience. Use scenarios: ideal for storefront advertising and promotions, showroom or counter displays, car branding and signage while driving, and events or parties where animated messages and branding are desired.