54-Channel Bluetooth Data Logger Log your trip and display on Google Earth! Features: Store up to 100,000 waypoints (optional 200,000 waypoints) Dual mode for both Data recording and Navigation 54-Channel high sensitivity tracking with Skytraq chip Log trip by setting Time, Speed, and Distance Display track in Google Earth Map Double as a Bluetooth GPS Receiver Specifications: Cold/Warm/Hot Start time: 32/30/1 sec. averaged Sensitivity -159dBm with Skytraq GPS chip Support GPS Protocol NMEA-0183 at 9600 bps baud rate Compliant with Bluetooth devices with Serial Port Profile (SPP) Built in Patch Antenna Reacquisition: 0.1 sec. averaged ; Accuracy: 5 Meters CEP Bluetooth V2.0; Working range: 10~15 meters in open space Output format: GGA, GSA, GSV, RMC, GLL (default); VTG (Optional) Battery: 3.7V Rechargeable and removable battery