Fetures: Brand new and high qualityvehicle， truck， motorcycle tracker monitorBuilt-in GSM antennas Real-time tracking， burglar and SOS alarm tracker will give you more secure feelingWith SOS alarm and voice monitoring functionReal-time location tracking， track playback;Support SMS and GPRS platform tracking;Built-in vibration sensor， realizing vehicle vibration alarm.Specifications:GSM: 900/1800MHz or 850/1900MHzGPRS: Class12，TCP/IVoltage range: 9-48VDC(can also connect 12/24V)Standby current: ??0.2mAOperating ambient temperature: -20??C - +70??CWork environment Humidity: 20%-80%RHDimensions: about 55.0(L)x40.0(W)x15(H)mmAttention:Please do NOT reverse terminal SIM card;Terminal SIM card needs to open GPRS function;Please make sure that terminal SIM card has charge;Suggest using special equipment flow card(only support GSM network)Terminal chosen & installation:1.This device is high technical product， please choose the professional organization or person that distributor designated to install and debug. 2.Please follow the following order to do terminal installation， don't inverse. In the installation process， please don't give terminal power supply.3.The terminal's installation suggests to be a concealed installation.It is suggested to let the professional organization that dealer designated do the concealed installation， please pay attention to the following items: *to avoid the thieves' destruction， the terminal should be hidden as far as possible， please notice waterproof; *avoid to put it together with emission source， such as burglar alarm and other vehicle communication terminal; *can use ribbon to fix， or use wide sponge double-faced adhesive to stick. *Motorcycle connection mode: open the battery box and connect 12V voltage. The red line is positive (DC +)， joint battery anode， black line for negative level (GND)， joint battery cathode. *Battery car connection mode: battery car is generally 48-60V voltage， there are 4 groups of batteries， each group is 12V. Open the battery box and put 12V battery into it. Battery anode (DC +) joints red， negative (GND) joints black.Package includes: 1 x tracker 1 x Wire 1 x English user manual