Features:Tracking by real time.GPS+AGPS+LBS positioning, more accurate and smart.GSM Quad-band frequency(Global use).Support tracking by iOS/Andriod app and pc network.Multi-function use, can be used for car/vehicle/kids/old people/pets, etc.3 working modes: quick tracking, standard tracking, power saving tracking.Built-in speaker and microphone, voice monitor SOS emergency call function.Previous track playback: previous track could find the route map for nearly 3 months by choosing the beginning and ending time.Geo-fence: you can set up a position range, and the device will send message to you when the device is out of this range.Mini portable design with champagne gold color, easy to carry and beautiful elegant appearance.