Promo Drone Announces Letter of Intent with Cohen Ventures for 20 Starling X.2 Units Promo Drone, a company specializing in aerial advertising and emergency response solutions, has announced that Cohen Ventures, a commercial real estate and capital investment firm based near Baltimore, has signed a letter of intent to purchase 20 units of the Starling X.2. This commercial … [Read more...] about Promo Drone Scores Major Deal for Advertising Drone