Features: 100% Brand new and High quality Quad band &built-in antennaTwo way locating methods based on MBS and GPSSupport web, SMS and Google map link, no need of platform registrationIt needs password to make and change any setup, protect your privacyIt can detect and fix some problems by built-in monitor CPUBuilt-in turn on/off power, supports 7-30V input voltage, suitable for all carsIt supports hidden and open installationLocation inquiry by SMS or GPRS (TCP/IP)It can take power supply from car cigarette lighter or car storage batteryLED indicators to show working status at any timeIt can accurately position even when the signal is weakOnline real-time tracking, report location and emergency to internet and monitor NO. automatically. Specifications: GSM:850/900/1800/1900MHzGPRS: Class2,TCP/IP built-in GSM mODULEGPS Module:SIRF Star III/LPGPS Channels:20Tracking Sensitivity:-159dBMAcqusition Sensitivity:-144DBMLocating Time Cost:Hot start:<2secs(Open sky)Warm Start:<15secCold Start:<38sec(Open Sky)Antenna: Built-in GSM,GPS antenna with low noise and high gainFunction Buttons:Power,SOSLED indicator: Three LED indicator GPS-blue,GSM-green,Power-redPower input:Car power supply:7~30v DC Package Includes: 1 x GPS Tracker TK1101 x Wire1 x English Manual