 The fireworks display in downtown Baltimore tonight will be a little different. A fleet of battery-powered drones will join actual fireworks to light up the skies above the Inner Harbor. Image Engineering is the company arranging the event. It started by doing laser shows, lighting and pyrotechnics, also creating displays for the Ravens player introductions. Tonight's event is being promoted as a story in the sky and will be accompanied by a patriotic live set from the Baltimore Symphony.