A mobile billboard, also known as a “digital billboard truck”, is a device used for advertising on the sides of a truck or trailer that is typically mobile. Mobile billboards are a form of transit media; static billboards, and mall/airport advertising fall into this same category. Using a mobile billboard for advertising is an advertising niche called mobile outdoor advertising
Industry analysts, researchers and trade representatives have researched the effectiveness of mobile billboards. Outdoor Advertising Magazine said that outdoor mobile media billboards have a 97% recall rate, and 96% of survey respondents thought mobile advertising is more effective than traditional outdoor advertising.3M and the American Trucking Association noted 91% of the target noticed the text and graphics on truck advertising, and the Traffic Audit Bureau noted that on local routes monthly impressions ranged from one to four million hits. Product Acceptance and Research said 94% of respondents recalled seeing the Mobile Billboard, with 80% recalling the specific advertisement; the billboards resulted in a sales increase of 107%.