The Freedom Keychain GPS SiRF Receiver can be charged in the car or at home. Ideal for connecting to your notebook, PDA or Mobile Phone by state of the art Bluetooth technology.

This powerful GPS receiver comes with the latest in GPS technology, the SiRF Star III works from your pocket, hand bag or briefcase. Works with all the popular mapping software currently available.

GPS Specification: Chipset - SiRF Star III. 20 Channels "All-In-View" tracking. Protocol: NMEA 0183/GGA, GSA, GSV, RMC, VTG, GLL. Baud Rate: 57,600 bps. Frequency L1, 1,575.42 Mhz. Tracking Sensitivity: 159 dBm.. Position deviation*: 10 meters 90%. 2D RMS 1-5 meters. Velocity: 0.1 m/sec.. Effective temperatures: Storage: -40°C +70°C. Working: -20°C +60°C. Air humidity: 5 - 90% Internal Ceramic Patch antenna. MMXC connection for external antenna.