CSR plc is a United Kingdom-based company engaged in designing and supplying single chip wireless devices. The segments of the Company are cellular and non cellular. The cellular segment includes mobile phones and headsets and audio-related products. The non cellular segment includes personal computers (PCs), automotive and consumer applications. The Company through the BlueCore range of products is a supplier of Bluetooth wireless voice and data communications, providing integrated circuits (ICs or silicon chips) to manufacturers of a range of electronic devices. It includes mobile phones, headsets, laptop personal computers (PCs), PC peripherals, games consoles, stereo headphones, moving picture experts’ group layer-3 audio (MP3) players and automotive-based systems. On January 12, 2007, the Company completed the acquisition of NordNav Technologies AB (NordNav) and Cambridge Positioning Systems Limited (CPS).