Geekstory LED Car Sign, Flexible LED Matrix Panel - 14.6x3.6 USB 5V LED Scrolling Sign丨BT Smart APP Control, Custom Text Pattern Graffiti Animation Music Rhythm Display for Car Windows, Store, Concer

It works great. I am able to hook this up in my car easily. I have an android and I downloaded the app on my phone. It easy to navigate and controlling the words are easy.

This is a neat little display, make sure you look at the dimensions because it is pretty small. Its fun to play with the messages and personalize them. It would be nice if there was a way to share animations on the app so you could benefit from others creativity

GeekStory CoolLED148 LED Car Sign, Flexible LED Matrix Panel App to control this works better on iOS than on Android. If you are patient, you can create your own unique digital signs. Use some graph paper to plot out your custom designs (See the Taco and Mojito Mango sign I tossed together as an example. Pros - - It works well. Lightweight, flexible, and a good length cord. - Intuitive to use and create your own signs once you have the software installed. - Use the Text tool to create basic digital signs, use the graffiti or animation tool to fully customize your display. Cons - - Cable can use some strain relief on the screen. Ill mount the screen to a piece of plexiglass and secure the cord. - iOS app seems to be more reliable than the Android one. - I really wish you could create an animation from different Text signs youve already setup. (There are multiple vendors out there selling this same CoolLED148 panel. Do your homework, and do some price comparison for sure)