1. DIY DRAWING: Just create your own animated GIFs or images for a unique display if the existing image doesnt meet your needs.2. BLUETOOTH CONTROL: Suitable for iOS and Android systems. You can scan the QR code on the manual to download the APP. Easy to control the LED display by connecting the phone through Bluetooth.3. BUILT-IN PICTURE/ANIMATIONS: Built-in multiple pictures and animations (the app is still being upgraded, and the pictures/animations quantity may increase later), you can freely choose your basic style.4. PRE-SET SELECTION: More Pre-set symbols: Phone, Heart, Finger, Star, Triangles, Diamond, and Square. More pre-set graphics like smile face, heart, little girl, piglet, national flag, rainy day, forbidden symbol and .5. EASY TO USE: The LED display can be easily adjusted for better visibility. The control buttons are conveniently located and the suction cups make installation a breeze. Suction cup angle can be adjusted up, down, left and right.Suitable system: suitable for Android/iOSPixel: 32x32 dotsNumber of lamp beads: 1024 piecesSize: 245x131mmDisplay size: 131x128x15mmVoltage: 5V/2AProduct power: 10WPH: 4mm: RGB (2020smd)Connection : BluetoothMounting: Suction Cups on GlassColour:blackMaterial:ABS+silica gel+aluminumPackage Contents:1 x Car LED Display Screen with sucker holder1 x USB power cable1 x Manual in English and ChineseOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.