Release

CAP-XX BriteSound™ Power Architecture
Honored as Finalist in Design News
Golden Mousetrap Awards

Sydney, Australia – September 19, 2007 – CAP-XX Limited (LSE:CPX) today announced that Design News
has named its supercapacitor-based BriteSound™ Power Architecture for music phones as a finalist in the 2007 Golden Mousetrap Awards. Specifically, the thin CAP-XX HS206 supercapacitor was selected in the electronics category for its ability to overcome power limitations in a mobile phone and deliver a richer
music experience.

In CAP-XX's BriteSound™ Power Architecture, a supercapacitor delivers five-watt (W) power bursts which double audio power for rich-sounding music with a strong bass beat, and eliminate the distortion caused by wireless transmissions while listening to music.

"We are honored that Design News has nominated our supercapacitors for this award," said CAP-XX CEO Anthony Kongats. "This achievement recognizes our dedication to developing unique power solutions for mobile devices, which continue to shrink in size but increase in functionality."

BriteSound™ is the second CAP-XX BritePower™ architecture for mobile phones, joining the BriteFlash™ solution in which a supercapacitor powers high-brightness LED flash.

CAP-XX is working with key mobile-phone manufacturers and expects the first designs that are power-boosted by its supercapacitors to hit the market in 2007.

CAP-XX BriteSound™ Power Architecture for Music Phones:
As MP3-ready handsets grow in popularity, consumers want an iPod-quality audio experience without the distortion that interrupts music when the phone has to handle other peak-power functions.

In a BriteSound™ phone, a thin, 0.55-farad, 85-milliohm CAP-XX HS206 supercapacitor delivers 5W power bursts to drive peak-power functions such as music audio and LED flash. The battery can then be sized to cover the phone's average audio power needs, recharging the supercapacitor between bursts.

The supercapacitor powers the audio amplifier at 5 volts (V), compared to 3.6V from a battery alone, thereby doubling peak audio power for full-sounding music with a strong bass beat.

The supercapacitor also eliminates the distortion that interrupts music during wireless transmissions, by handling the peak-power needs of the RF Power Amplifier.

For more on BriteSound™, including three tests comparing audio quality and power in typical mobile-phone audio circuits: http://www.cap-xx.com/news/BriteSoundPowerArchitecture.htm

About Design News:
Design News, founded in 1946, is the leading technical resource for design engineers, who create everything from planes, trains and automobiles to cellular phones, medical devices, and, just about every other product on the planet. For more information, visit: http://www.designnews.com/

About CAP-XX:
CAP-XX Ltd. is a world leader in the design and manufacture of thin, flat supercapacitors and power architectures for portable electronic devices. Supercapacitors resolve the power and performance limitations of batteries, bridging the gap between the power demanded and that available from a battery.

CAP-XX supercapacitors enable manufacturers to make smaller, thinner, longer-running portable electronics such as cell phones, PDAs, PMPs and medical devices. The company, which is listed on the Alternative Investment Markets (AIM) in London, is based in Sydney, Australia, has additional production facilities in Malaysia, and sales offices in the UK and USA. For more information, visit http://www.cap-xx.com or email sales@cap-xx.com.

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