Xenonics Reports 91% Increase in Fourth Quarter Revenue

CARLSBAD, CALIFORNIA -- December 22, 2009 -- XENONICS HOLDINGS, INC. (NYSE AMEX:XNN) announced today that revenue for the fourth quarter ended September 30, 2009 increased 91% to $2,090,000 compared to $1,094,000 for the fourth quarter of fiscal 2008. Gross profit increased 178% to $1,003,000 compared to $361,000 a year earlier, and operating expenses decreased 33% to $1,028,000 compared to $1,524,000. The net loss for the fourth quarter of fiscal 2009 narrowed to $42,000, or $0.00 per share, compared to a net loss of $1,142,000, or $0.06 per share, for the fourth quarter of fiscal 2008.

Xenonics To Release Fiscal 2009 Results on Tuesday, December 22, 2009;Webcast Set For 11:00 a.m. EST

CARLSBAD, CALIFORNIA -- December 8, 2009 -- XENONICS HOLDINGS, INC. (NYSE
Amex: XNN) today announced that it will release financial results for the fiscal year ended
September 30, 2009 on Tuesday, December 22, 2009 at approximately 7:30 a.m. EST.
Xenonics has scheduled a conference call at 11:00 a.m. EST that morning to discuss its results
for the year.  The dial in number is (800) 510-9661 and the passcode is #82441213.