A mobile bar brings the bar to you! If you’re hosting an event at a venue, in your backyard, or somewhere that’s not set up to serve alcohol , a mobile bar can make your life infinitely easier. The bar provides everything from the alcohol to the glassware to the bartender(s). In some states, a mobile bar is not allowed to provide the alcohol, in which case you would provide it and the “dry mobile bar” would take it from there.