ATCO American Technology (MM)

American Technology Corporation (ATC) (NASDAQ: ATCO) will conduct a conference call and webcast to discuss the Company's business and financial results for its fiscal year ended September 30, 2009 on December 2, 2009 at 1:30 p.m. Pacific Time. The Company is scheduled to issue its fiscal year 2009 financial results after market close on December 1, 2009.

To access the conference call, please dial (866) 836-4700; the conference participant code is 1415076. A question and answer session will be available to dial-in callers after the speakers' presentation. The conference call will also be available through the Webcast link below (listen-only mode):

WEBCAST LINK

http://event.on24.com/r.htm?e=180447&s=1&k=706315CF8D0BDBF6C3C304B82E9CC58F

To participate, please dial-in/log-on at least 5 minutes prior to the scheduled start time in order to download and install any necessary audio software and/or to register for the call.

Questions to management can be submitted prior to the conference call by e-mailing them to: info@atcsd.com.

The webcast will be recorded and available for replay through the Webcast link above approximately 24 hours after the conference call. The replay will be available for approximately thirty days.

About American Technology Corporation

American Technology Corporation is providing directed audio solutions that place clear, highly intelligible sound exactly where needed. ATC's Long Range Acoustic Device(TM) (LRAD®) and other directed sound technologies comprise the core of an expanding portfolio of products being used around the world in diverse applications including global military deployments, maritime security, critical infrastructure and commercial security, border and port security, law enforcement and emergency responder communications, and wildlife preservation and control. For more information about ATC and its directed sound products, please visit the company's web site at www.atcsd.com.

FOR FURTHER INFORMATION CONTACT: Robert Putnam Investor Relations (858) 676-0519 Email Contact