1Adjustable and Convenient: The LED display can be easily adjusted for better visibility, the silicone suction cup makes the installation easier, and the angle of the suction cup can be adjusted up, down, left and right. 2Phone Control: Bluetooth and voice or App control, suitable for iOS and for Android systems. You can download the app by scanning the Qr code and connect your phone via Bluetooth to easily control the LED display. 3Built in Image: The LED display has built in pictures, you can choose freely, and there are many more pre configured charts, such as smiley face, heart, little girl, pig, national flag, rainy day, prohibition sign and various expressions. 4Diy Drawing: With preset symbols, such as heart, finger, star, triangle, diamond and square. If existing images don't meet your needs, you can simply create animated GIFs or images to showcase uniquely, with a variety of fonts and background colors. 5Applicable Occasions: Interactive LED screen is versatile and you can easily advertise to people through windshields, or show your mood and thoughts while driving. Suitable for car, home, restaurant, store, etc.