It is a GPS/GPRS based personal tracking device, which is compact and easy to use.
It has built in GPS module to obtain accurate position data
and utilizes its GSM capability to send the position data to a specified mobile phone or server base to allow users to monitor people or pets using the tracker.
It supports two way voice communications and can be activated either by the guardian calling the tracker
or the tracker holder activating the SOS button.
The tracker can be configured to report its location to the server base or mobile phone at preset intervals.

With internal memory,
It can store GPS coordinates when there is no GPRS connection
or at a specified interval requested by the user.

Functions and features:
SMS and GPRS TCP/UDP Communication
Track on Demand
Show Location Directly on Mobile Phone
Track by Time Interval
Two-way Audio
GSM Blind Area Memory
Internal Memory for Logging
built in Motion Sensor for Power Saving
SOS Panic Button
Movement Alarm
Geo-fencing Control
Low Battery Alarm
Speeding Alarm
GPS Blind Area Alarm (in/out)
Three Buttons for Making Phone Call and/or Sending Message
Built-in Super Magnet (optional)

Characteristics:
Charging Voltage:   DC 4.2-5.5V/400mA (Mini USB port)
Internal Battery:     Rechargeable and replaceable 1350 mAh battery (3.7V),
Dimension:            77 mm × 51 mm × 25 mm
Operating temperature:  -20° to 55° C
Humidity:               5% to 95% Non-condensing
GSM module:         Quad Band GSM 850/900/1800/1900Mhz
GPS Chipset:         latest GPS SIRF-Star III chipset
GPS Sensitivity:     -158Db
GPS Frequency:      L1, 1575.42 MHz
C/A Code:              1.023 MHz chip rate
Channels:              20 channel all-in-view tracking
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/sec
Work time:          55 hours in power-saving mode and 12 hours in normal mode
Memory:              4MB flash memory
LED:                    3 LED lights to show power, GPS, GSM and other status.
Button:               3 buttons(SOS/B/C) for making phone calls and sending SMS