Leadleds Remote Courtesy Sign for Driver Say Thank You Sorry, with Dc12v Cigar Lighter and Remote to Switch Messages The led courtesy sign made for driver say thank you and sorry, as well as for business, home, office use Simple press the remote 1 or 2 to choose the message, 1-8 message selectable On/off switch, 4 brightness levels adjustable, 25%, 50%, 75%, 100% One set with DC 12v cigarette lighter and cable for car use, the vacuum sucker and tripod also included for use in office, home, shop, business Multi-language supported, rechargeable, portable, programmable