Features: 1) Precisely located indoors and outdoors 2) Can prevent theft of vehicle, cargo and box 3) Monitor and protect olds, children and pets 4) It is a server-based service, more advanced technology than GPS. It positions and tracks various remote targets or objects in combination of the signals of CDMA (800/1900MHz) base station and GPS satellite. User can get the position information via message or internet 5) Covered with CDMA signals such as in car trunk, elevator and basement, with the precision of (outdoor) 5 to 20m, (indoor) 50 to 200m 6) Slim, integrating design (built-in antenna and battery,40g), hide and carry easily 7) Low consumptions, with a long idle state of 20 to180 days (depend on the working mode) 8) Covert warning, remote monitoring and surveillance 9) Search conveniently and automatically: search the target object via message and Internet Applications: 1) Guard against theft of boxes, vehicles, outdoor equipment, and track cargos 2) Monitor and protect children, olds and disabled 3) Provide peace-of-mind for businessman 4) Manage the on-errand personnel 5) Track criminals secretly