Sierra Wireless AirPrime™ XM0110 GPS module utilises CSR’s SiRFstarIV™ GSD4t

CAMBRIDGE, England — (BUSINESS WIRE) — June 8, 2010 — CSR (LSE: CSR) today announced that Sierra Wireless has selected CSR’s SiRFstarIV GSD4t GPS receiver for its new AirPrime XM0110 GPS module. The AirPrime XM0110 GPS module is compatible with most of the Sierra Wireless AirPrime family of wireless embedded modules. It is designed to offer easy integration of reliable GPS features for any application in the transportation and automotive market with the need for accurate positioning data and cellular connectivity. With the SiRFstarIV GSD4t receiver, Sierra Wireless’s products should achieve robust and reliable GPS co-ordinates without compromising battery life.

“Partnering with CSR on AirPrime XM0110 GPS has enabled us to create a solution with which customers can quickly and cost-effectively integrate GPS and GSM into tracking applications,” commented Didier Dutronc, Senior Vice President of Marketing for Sierra Wireless. “SiRFstarIV architecture has become the new industry benchmark for GPS functionality. Its credibility and capability will provide our AirPrime customers with robust, best-in-class, continuous location awareness.”

CSR’s SiRFstarIV architecture combines a high-performance GPS location engine, smart location sensor interface and an adaptive micro-power manager to deliver enhanced sensitivity, reduced time-to-fix and improved positional accuracy. The GSD4t receiver offers near-continuous availability of a fast location fix at signal levels as low as -160dBm, independent of the wireless network used, or without any network at all.

Ahmet Alpdemir, Senior Vice President of CSR’s Automotive and PND Business Unit said: “SiRFstarIV is the latest generation of the SiRFstar architecture, one of the most widely deployed architectures for GPS and location awareness in the market. We are pleased to be able to work with Sierra Wireless, a market leader in machine to machine communication, to enable us to bring our location platforms to even more customers. SiRFstarIV’s strength is its ability to continually maintain “better than hot start” conditions in the GPS receiver for fast and accurate location fixes in a variety of environments without having to be kept fully turned on all the time. Sierra Wireless’s application of SiRFstarIV in its AirPrime XM0110 GPS solution is a great example of how to simply and cost effectively facilitate superior location functionality in devices.”

“We look forward to seeing Sierra Wireless bring AirPrime XM0110 GPS to its core customers in markets such as fleet management,” said Dipak Raval, Sales Manager for Europe at CSR. “Asset tracking and automotive applications continue to represent a growing opportunity for us, and adoption of SiRFstarIV by Sierra Wireless creates exciting opportunities for CSR.”

Sierra Wireless AirPrime XM0110 GPS modules are being tested by global customers, with commercial availability scheduled for Q3 2010.

Sierra Wireless will be demonstrating AirPrime XM0110 GPS for the first time at Telematics Detroit from 8-9 June 2010.

About CSR

CSR plc is a leading provider of multifunction connectivity, location and audio platforms. CSR’s technology portfolio includes Bluetooth, GPS, FM, Wi-Fi (IEEE802.11), UWB, NFC and other technologies to enable silicon platforms that incorporate fully integrated radio, baseband and microcontroller elements. CSR’s Connectivity Centre is designed to enhance the user experience with mainstream mobile devices by intelligent integration of multiple wireless connectivity and location-awareness technologies. CSR’s Location Platforms are complemented by wireless connectivity and multimedia capabilities for high-volume mobile consumer devices and commercial applications.

CSR’s technology has been adopted by market leaders into a wide range of mobile consumer devices such as mobile phones, automobile navigation and telematics systems, portable navigation devices (PNDs), wireless headsets, mobile computers, mobile internet devices, GPS recreational devices, digital cameras, mobile gaming, plus a wide range of personal and commercial tracking applications.

More information can be found at www.csr.com

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR)(TSX: SW) is expanding the wireless world with a comprehensive offering of hardware, software, and connected services for mobile lifestyles and machine-to-machine communications. Our customers count on us to help them succeed with early access to new wireless technologies and innovative, reliable, high-performing solutions for a broad range of applications. For more information about Sierra Wireless, visit www.sierrawireless.com.

AirPrime, AirVantage and Open AT are trademarks of Sierra Wireless. Other product or service names mentioned herein may be the trademarks of their respective owners.

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS

This press release contains statements (including statements concerning plans and objectives of management for future operations or performance, or assumptions related thereto) that are ‘forward looking statements’ within the meaning of the United States Private Securities Litigation Reform Act of 1995 in relation to the adoption by Sierra Wireless of CSR’s SiRFstarIV GSD4t GPS receiver into Sierra Wireless’s AirPrime XM0110 GPS module and other future events and their potential effects on CSR. These forward-looking statements can be identified by words such as ‘offers’, ‘achieve’, ‘enable’, ‘provide’, ‘will’, 'should' and other similar expressions regarding the expected performance characteristics of CSR's SiRFstarIV GSD4t GPS receiver and Sierra Wireless’s AirPrime XM0110 GPS module. Availability and functionality of CSR’s SiRFstarIV GSD4t GPS receiver and Sierra Wireless’s AirPrime XM0110 GPS module are subject to change. Any future release of CSR’s SiRFstarIV GSD4t GPS receiver and Sierra Wireless’s AirPrime XM0110 GPS module or planned modifications to such products’ capability, functionality or feature are subject to ongoing evaluation by CSR and Sierra Wireless, and may or may not be implemented and should not be considered firm commitments by CSR or Sierra Wireless and should not be relied upon in making purchasing decisions. Such forward-looking statements represent the current expectations and beliefs of management of CSR, and are based upon numerous assumptions regarding CSR’s business strategies and the environment in which CSR will operate and therefore involve a number of known and unknown risks, contingencies, uncertainties and other factors, many of which are beyond the control of CSR. Each forward looking statement speaks only as of the date hereof. CSR does not undertake to release publicly any updates or revisions to any forward looking statements contained herein, otherwise than required by law.