1. GSM Chip: 850 / 900 / 1800 / 1900 Mhz 2. GPS Sensitivity: -159DB 3. GPS Frequency: L1, 1575.42 MHz 4. Accuracy for Location: 5m, 2D RMS 5. Accuracy for Speed: 0.1m/s 6. Time to First Startup: 38 seconds on average 7. Warm Start: 8 seconds on average 8. Altitude Limit: 18,000 meters (60,000 feet) max 9. Velocity Limit: 515 meterscond (1000 knots) max 10. Vibration Limit: 20mcond 11. Operation Temperature: -25°C to +65°C 12. Humidity: 5% ~ 95% non-condensing 13. Battery: Rechargeable 3.7V /1000mAh Li-ion battery 14. Charging Port: DC 5V (Mini USB Port)Brand New