-GPS/GSM/GPRS mini tracker with SOS button -Showing the location map directly on any mobile without install any software. -With high accuracy remote location tracking device -With compact GPS and GSM modules -Transmits the SMS message of longitude, latitude and location link to cell phone -Suitable for locate children, elders, pets, vehichles, yacht and vessel. Features: -GSM /SMS communication or GPRS TCP/UDP connection. Support 850/900/1800/1900 MHz (compatible) -20 channels high sensitivity GPS Module -Compact size, easy to hide and smaller than a name card. -In case of emergency, "Help" message with location will be send to all preset phone numbers -Geo-fencing to restrict movement to a defined radius -Very Low power consumption, Standby time is more than 35 hours -Fast Signal Acquisition -Support single location reporting and continuous tracking -Support remote monitoring -Support check location by SMS and Internet -Device Size: 49x16x39mm -Weight: 50g