Only supports 2G network SIM card not included, please buy a local SIM card with 2G (GSM) functions. This Sinotrack ST-901 GPS tracker only supports 2G (GSM) network. If this is not supported, please switch to the same model ST-901W 3G tracker. Sinotrack ST-901W 3G vehicle tracker can be used all over the world Main function SinoTrack vehicle mini GPS tracker for car motorcycle, built-in GSM and GPS double antennas with ACC to detect ignition. GPS tracker for cars, simple and user-friendly for motorcycles, trucks, taxis, etc. Movement (ACC alarm), speeding, leaving, low battery, shock, driving reports stored during maintenance. GPS vehicle tracker built-in 150mAh backup battery, can use at least 1-2 hours Real-time tracking real-time car GPS tracker ST-901 tracking device based on GSM, GPRS network and GPS satellites, locating and monitoring remote destinations with our own GPS tracking app that accurately displays location information (position. 5 - 10 metres) history memory Sinotrack car GPS tracker can store 2 years tracking history. GPS tracking device with 2 time intervals. You can view and play back your daily tracking history, and when the car drives to one place, you can make a clearer judgment International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.