Simply insert a GSM sim card into the GPS tracker. Whenever you call the tracker it will respond with the coordinates of its location through a SMS message. You can use these coordinates on any mapping software (Google Earth etc) which will show where exactly the unit is located.

Feature: LIVE! Real time tracking GSM/SMS communication or GPRS TCP/UDP connection. Works Worldwide Supports alarm and remote VOICE MONITORING Quick dial buttons for 2 preset phone numbers SOS button sends out exact location for immediate rescue/action. Geo-fencing to restrict tracker movement to a defined radius. No monthly service charges to be paid to the call center. Compact size, very portable, easy to hide

Specification: GSM Chip: 850 / 900 / 1800 / 1900 Mhz GPS Sensitivity: -159DB GPS Frequency: L1, 1575.42 MHz Accuracy for Location: 5m, 2D RMS Accuracy for Speed: 0.1m/s Time to First Startup: 38 seconds on average Warm Start: 8 seconds on average Altitude Limit: 18,000 meters (60,000 feet) max Velocity Limit: 515 meters/second (1000 knots) max Vibration Limit: 20m/second Operation Temperature: -25°C to +65°C Humidity: 5% ~ 95% non-condensing Standby Time: Around 150 hours (sleep mode) Battery: Rechargeable and changeable 3.7V / 850mAh Li-ion battery Size: 66 (L) x 46 (W) x 17 (H) mm

1 x GPS Tracker 1 x Li-ion Battery 1 x Cable