GSM module: embedded GSM 850/900/1800/1900 MHz , GPRS class 12 
GPS Chipset: SiRF Star III 
Frequency: L1, 1575.42 MHz 
C/A code: 1.023 MHz chip rate 
Channels: 20 channel all-in-view tracking 
Antenna Type: Omni-directional GPS antenna 
Position Accuracy: 10 meters, 2D RMS 
Velocity Accuracy: 0.1 m/s 
Time Accuracy: 1 us synchronized to GPS time 
Default datum: WGS-84 
Reacquisition: 0.1 sec., average 
Hot start: 1 sec., average 
Warm start: 38 sec., average 
Cold start: 42 sec., average 
Altitude Limit: 18,000 meters (60,000 feet) max. 
Velocity Limit: 515 meters/second (1000 knots) max. 
Acceleration Limit: Less than 4g 
Jerk Limit: 20 m/sec3 
Operating temperature: -20° to 55° C 
Humidity: 5% to 95% Non-condensing 
Dimension: 115 mm × 45 mm × 22.5 mm 
Voltage: Rechargeable and replaceable 1300 mAh battery (3.7V), 5V for charging input. 
Charging connector: DC 5V
Standby time: Over 100 hours 
Talking time: 5 ~ 6 hours 
LED: 3 LEDs showing Power, GPS and GSM status. 
Key: 7 Keys for Power On/Off key, Emergency key, Intimate call * 3, Lock key and Answer/Reject key. 
USB port: Mini USB port for connecting to PC.