~~McCann Systems is an audiovisual leader with worldwide headquarters in Edison, New Jersey, Wallingford, Connecticut, Boston,Massachusetts, Las Vegas, Nevada, St. Louis, Missouri and offices in London, England. McCann has been a visionary in raising the bar for corporate audiovisual solutions. McCann Systems has been instrumental in assisting companies of all sizes, including members of the Fortune 500 and Global 500, create customized audio visual environments to effectively communicate their ideas, products, and images.