... public message. Internet Function:Have the internet USB connection Frame: PVC, aluminum alloy and ABS framingPower adapter: 110V/ ... the following areas:1. Construction signage: building sign, region sign, department sign, house sign, etc.2. Public signage such as NO ... : company logo, slogan, etc.4. Special illumination: illuminated sign in water, ground indicator in public places, wal5. l ...