PR releases

SRS Labs' WOW HD technology now available on BlueCore5-Multimedia

SRS Labs brings music playback enhancement and 3D sound technology through CSR's eXtension Partner Programme

Cambridge, UK - December 8, 2006 - CSR (LSE: CSR.L) has announced a further third-party software enhancement for its BlueCore5-Multimedia platform. Capitalising on the strength of its eXtension Partner Programme, CSR's BlueCore5-Multimedia now offers SRS Labs' new stereo audio enhancement technology. SRS WOW HD(tm) technology provides CSR's BlueCore with cleaner, livelier audio quality, purity to spatial information, advanced bass enhancement and an innovative centre control feature. The SRS WOW HD implementation, one of the industry's best known stereo audio enhancement technologies, greatly improves the quality of music transmitted over Bluetooth.

The agreement between CSR and SRS Labs will significantly improve the user experience when listening to music through Bluetooth headsets and speakers. This is possible because SRS Labs' WOW HD offers high frequency clarity, selectable psychoacoustic bass and 3D sound on the BlueCore5-Multimedia platform.

Due to its high-performance, on-chip DSP, CSR's Multimedia platform is the only Bluetooth platform available which can support such third party audio enhancement software. In addition, BlueCore5-Multimedia offers superior sound quality with a best-in-class signal to noise ratio of -95dB. BlueCore5-Multimedia also leads the industry for power consumption and radio design.

Lenka Koloma, Senior Director of Strategic IC Partners & Sales, SRS Labs, commented, "Bluetooth technology has changed the way mobile devices are used and CSR has been instrumental in making Bluetooth a mass market technology." Koloma continued, "Joining CSR's eXtension programme is an important step in expanding SRS Labs' mobile market strategy and by integrating SRS WOW HD technology into CSR's Bluetooth platform, the two companies are providing unsurpassed stereo audio quality to consumers worldwide."

Richard Ord, SVP of CSR's Wireless Audio strategic business unit (SBU) commented, "The eXtension programme was launched to bring more innovation and the latest technological capabilities to Bluetooth technology. CSR's relationship with SRS Labs has introduced cutting-edge audio to Bluetooth technology. By offering SRS SRS WOW HD on the BlueCore5-Multimedia platform, SRS is introducing a new level of audio enhancement to Bluetooth-enabled audio devices."

CSR is ranked number one in every Bluetooth market segment, boasting a lifetime to date overall design win share of around 60%. In the audio enhancement space, SRS Labs technology has been integrated into over 1 billion products including Microsoft's Windows(r) Media Players, flat panel TVs, AV receivers, MP3 players, notebook PCs, car audio head units and iPod(r) speaker cradles.

About CSR CSR is the leading global provider of personal wireless technology and its product portfolio covers Bluetooth, FM receivers and WiFi (IEEE802.11). CSR offers developed hardware/software solutions, based around its silicon platforms, that incorporate, fully integrated radio, baseband and microcontroller elements.

CSR's customers include industry leaders such as Apple, Dell, LG, Motorola, NEC, Nokia, Panasonic, RIM, Samsung, Sharp, Sony, TomTom and Toshiba.

CSR has its headquarters and offices in Cambridge, UK, and offices in Japan, Korea, Taiwan, China, India, France, Denmark, Sweden and both Dallas and Detroit in the USA.

More information can be found at www.csr.com

About SRS Labs, Inc. SRS Labs develops advanced audio and communications technology that optimizes and improves the listening experience through techniques based on the latest research into the human auditory system. With more than 1 billion products shipped worldwide, SRS Labs is a leader in audio. Incorporated in products ranging from HDTVs and mobile phones to PCs and automotive entertainment, SRS Labs audio and speech signal processing provides the best possible sound on every form factor and in every environment. SRS Labs surround sound solutions enable the professional broadcast and recording industries with high-performance production, back-haul, storage, and transmission capability. SRS Labs supports manufacturers worldwide with offices in the US, China, Europe, Korea, Japan, and Taiwan.

More information can be found at www.srslabs.com