... ,Phone lock the vehicle/car, 2,just such as put the car in your pocket, 2,tk102 gps tracker/car gps tracker/gps tracker ... manufacturer/gsm gps tracker/cheap car gps tracker GSMFrequency channel850MHz/900 MHz /1800MHz /1900MHzGPRSClass 12,TCP/IP build in GSM MODULEGPS sensitivity- ... , Five levels adjustable6,Phone lock the vehicle/car, just such as put the car in your pocket, Anti theft and do not ...