14Actual total number: Sony GU-BT1 (US) 2-067-182-01 (1)GPS CommunicationReception frequency1575.42 MHz(L1 band, C/A code)Reception method12 channel all in viewReception sensitivityTracking: –152 dBmTrapping: –139 dBmPositioning update timeApprox. 1 secondPositioning accuracy5 m (16.4 ft.) (2DRMS, –130dBm)Wireless CommunicationCommunication methodBluetooth standard Ver. 1.1Output Bluetooth standard PowerClass 2Communication range*1line of sight Approx. 10 m(32.8 ft.)Supported Bluetooth profiles*2Serial Port ProfileFrequency band2.4 GHz band (2.400 GHz –2.4835 GHz)Specifications*1 Actual range will vary depending onfactors such as obstacles betweendevices, magnetic fields around devicessuch as a microwave oven, staticelectricity, interference, radio waveconditions, reception sensitivity orantenna performance, operating systemor software application, etc.*2 Bluetooth standard profiles specify theusage purpose for Bluetooth devicescommunicating with each other.*3 Design and specifications are subject tochange without notice.Power Source/General*3Power source DC 3.0 V (AA dry battery × 2,alkaline batteriesrecommended )Power consumptionMAX 360 mWOperating temperature0 °C – 40 °C (32 °F – 140 °F)Operating life Approx. 12 hours (attemperature 25 °C (77 °F))Operating life is differentaccording to the workingtemperature andenvironment.Dimensions 60 × 89 × 18 mm(2 3/ 8 × 3 5 /8 × 23/ 32 in.)(w/h/d) (not including projections)Mass Approx. 72 g (3 oz.)(notincluding dry batteries)Supplied accessoriesSee page 5.About Bluetooth communicationBluetooth communication is a new wirelesstechnology for the personal networkmarket. It is the leading standardtechnology for small scale, close distancecommunication at low cost, achievedwithout the need for complicated cableconnections.