Leadleds HD Dual Sided Led Topper Full Color Car Top Advertising Sign 4G WiFi Case color:Silver-White and important notices in stations

and important notices in stations and terminals

Switch screen:

if your Windows PC/laptop/Tablet can display the messages

then the screen will show the 7th message

but in the daytime or well-lit areas

Leadleds HD Dual Sided Led Topper Full Color Car Top Advertising Sign 4G WiFi Case color:Silver-White and important notices in stations38 in double sided LED screen full color high definition display DC9 36V operation Super brightness vivid display Waterproof, easy mount Available control single or multiple devices in the device list to perform operations Fast send your messages, and control your messages at 1,000 miles away. 3G 4G WiFi outdoor taxi roof led display top led screen car advertising digital sign For the United States, the 4G cloud supports LTE FDD bands: B2, B4, B12,