GSM module: Siemens Tri-Band GPS Chipset: High sensitivity GPS chipset Frequency: L1, 1575.42 MHz C/A code: 1.023 MHz chip rate Channels: 32 channel all-in-view tracking Horizontal Position Accuracy: 10 meters. 2D RMSVelocity Accuracy: 0.1 m/s Default datum: WGS-84 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 Antenna Type: GPS patch antenna Dimension: 86.7*48.9*32.5 mm Battery : 2100mA rechargeable Li-ion battery LED indicator: For Charging, GPS, GSM and Status. Interface: Mini USB port for connecting to PC Casing: Water resistant (IPX4)GPS external antenna port: MMCX port