KJOY Programmable Huge Bright LED Signs, 27''x5'' USB 5V, Bluetooth App Control Custom Text Pattern Animation, Scrolling, Flexible LED Display for Car Store Party Bar Hotel

I use this in my classroom and the kids love it. It’s easy to program and use. It also comes with a bunch of designs already premade. Highly recommend

So easy to program..I love it!!!

Just turned it on to use for a moment. I wanted to be able to type stuff to my son during his football game. Very easy set up even without a provided user manual. Two questions I couldn’t really find answered on Amazon. 1) can he read it during the daylight. Answer yes. 2) it came with no user manual. So I couldn’t for the life of me figure out what app to download. Finally figured it out for iOS is called Coolled1248.

This sign LED really works nice I really like it it's pretty handy and funny when you put messages out for people to see

This is a really great way to not only advertise when mobile but have fun with others on the road. The "manual" is basic and doesn't describe all the functions very clearly, so I'm still experimenting but even the preloaded signs can be edited and saved. My only issue... And it may be that I haven't 100% figured out the programing yet... Is it is not easy to rapidly change between images you have created, especially if you have multiple images in a lineup and want to go to an individual that isn't in that ordered line up. Tho the adhesive roll that come with is pretty good, I found that cleaning the glass with 91% isopropyl alcohol and applying a very thin layer of window tint adhesive spray is much more effective at reducing the risk of the sign doing off on days with extended exposure to heat and sun. Not to mention the fact that using the spray exponentially reduces or eliminates the air bubbles that tend to form and mess with clear visibility in the daytime.

A friend on his birthday asked for this item as a gift and it arrived by surprise. Now you can work at ease

Completely impractical and dangerous to use in any vehicle. First, it auto turns on every time you start the vehicle and displays whatever you last displayed. This can be problematic for obvious reasons. To turn it off, there's an inline physical switch that probably isn't near you and only a small button at the top of the app which is easy to miss. Then, you have to fumble (while driving) to select the images you want to display, choose the preferred order in their flawed queue system, and then send the data to the unit via Bluetooth (which takes a few moments every single time). This unit at least needs a physical remote control, which there isn't one available to purchase anywhere. Go buy a different unit. I will be.

Apparently very delicate. Used provided stickers however upon switching rideshare vehicles, this is what I have now. I didn’t just rip it off either. I was careful peeling it off.

Me gusto mucho, es facil de poner y de conectar.. yo lo tengo en mi cuarto y esta super bien.., lo unico es que el adesivo que viene incluido no es muy resistente

Works great so far I’ve had it for about 4 days I’ll leave another review if anything happens. It’s bright can be seen during the day just a bit dim in the sun, apps easy to use, was easy to set up, looking at ordering another for the driver side window as well

Easy to affix to my rear truck window with the supplied strong take which you apply to,it. I would reccomend that you plug it in first and find the proper orientation prior to affixing it to your vehicle window. I truly love its ease of use. It has a separate on of switch which you can affix near to you. And its use is so simple and so many visuals to use or use your own script.

facil de usar

It sticks to the window on it's own. Even in frigid weather. The display is bright and clear, though it can br tricky to get the correct direction for writing and arrows. Well worth the value, but now I want it to be longer. Buy the longer version if you want it for text. Otherwise, you can create speech or even pictures by drawing and writing as you see fit. As a first purchase test. This is great.