- Comprehensive upgrade with more large sizes including ultra-long options, delivering a larger, brighter screen visible from a distance; supports mobile app control and also includes a remote control for convenience. - IP65 waterproof LED scoreboard using high brightness, PU plus FPCB material, and a brilliant illusion effect; advantages include high efficiency, energy saving and environmental protection. Drip adhesive waterproof technology provides IP65 protection. - Easy installation: the LED car sign is very thin and lightweight, easy to store and carry; can be attached directly to a car window and is simple to install. USB plug design is portable and broadens application. - Intelligent app control and DIY: diverse app functions meet different user needs. The flexible LED indicator is controlled via a Bluetooth app compatible with iOS and Android and supports connecting multiple indicators at once. Program text (multilingual), patterns and animations, design scenes, and adjust brightness and speed as needed. - Flexible LED giant advertising sign: displays pictures, animations or running texts. The LED matrix panel uses a high-quality flexible board design and can be bent and folded as desired, suitable for uneven surfaces. - Accessories: screen x1, remote control x1, 4.5 m USB cable x1, manual x1, back panel adhesive x1. Batteries are not included; you need to provide your own button batteries. USB connector: 5V 2A; Connector(s): 5V 4A.