This is the smallest design SIM card and battery.The SMS messsage GPS Tracker MKT-GPS04 is able to be used anywhere you have GSM and GPS coverage. It can easy to set up and then you'll be able to set the time of tracking refreshes as well as the remote phone the device will keep in contact with.
After setup it's as simple as "asking" the GPS device to start tracking or just for a single location result, you can even use contact the tracker with voice and whoever has the tracker can reply using the built in microphone. The message from GPS Tracker will send to you’re the tracker location, speed and the date with time. Suitable uses include asset protection, plotting routes and keeping track of children.
This product is Tri Band,The frequency is 900MHz, 1800MHz and 1900MHz.
