Product Description: This mini GPS tracker is a personal remote position device with build-in GPS and GSM/GPRS modules. It is a small size, high accuracy remote location tracking device. Based on GPS satellite, it provides accurate position information under dynamic conditions. Personal remote position device transmit the longitude and latitude coordinate to authorized cell phone. You can use these features for protecting and searching children and old persons. Further, you can use it as a security purpose and other purpose which needs remote positioning such as asset protection and animal tracking Feature: Build-in GPS personal locator. GSM /SMS communication or GPRS TCP/UDP connection. Works worldwide! Support 3-frequency GSM 900 /1800 /1900 MHz And 4-frequency GSM 850 /900 /1800 /1900 MHz. (Optional) High sensitivity, new technology and latest GPS SIRF-Star III chipset! Excellent for fixing the position even at a weak signal status. Work well even in areas with limited sky view like urban canyons. Compact size, and smaller than one name card. Easy to hide Very Low power consumption Fast Signal Acquisition Support single location and continuous tracking Support location triggered by tracker Support location triggered by authorized cell phone Support alarm and remote monitor Support quick dialing buttons for 3 preset phone numbers Support check location by SMS and GPRS Monitors can track the person without interfering him, LIVE! Real-Time tracking! Locate the locator holder by the mobile phone via SMS (short messaging system). SOS button send out exact location for immediate rescue/action. Geo-fencing to restrict movement to a defined radius. No monthly service charges to be paid to the call center Specification: GSM module: Embedded GSM 900 /1800 /1900 MHz embedded GSM 850 /900 /1800 /1900 MHz (Optional) and GPRS TCP/UDP 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 Operating temperature: -25C--65C Humidity: 5% to 95% Non-condensing Dimension: 76 mm X 46 mm X 25 mm Voltage: Rechargeable and replaceable 1300 MAH battery (3.7V), 5V for charging input. Charging connector: DC 5V (USB port) Standby time: Over 60 hours LED: 3 LEDs showing Power, GPS and GSM status, And other operation status KEY: 3 Keys for SOS Emergency key, quick dial key B, quick dial key C