Leadleds HD Dual Sided Led Topper Full Color Car Top Advertising Sign 4G WiFi Case color:Silver-White then the screen will show

then the screen will show the 7th message

Excellent heat dissipation and noiselessness

auto shut-off after leaving

Usage: Indoor or outdoor non-waterproof

yellow light

Leadleds HD Dual Sided Led Topper Full Color Car Top Advertising Sign 4G WiFi Case color:Silver-White then the screen will show38 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,