Description: GSM frequencies: 850M/900M/1800M/1900M GPRS:Class12,TCP/IP Voltage range: 3.6-4.2VDC Standby power: about 0.2mA GPS locating time:cold start=38s, warm start=32s, hot start=2s GPS precision: within 10m GPS sensitivity:-159DB Work environment temperature: -40 +80 degree Work environment humidity: 20%-80%RH Dimension: 86*55*6mm Total weight: 40g Built in 1200mAh battery Feature: AGPS + 3LBS + GPRS. GSM quad band 850/900/1800/1900 worldwide. SMS instruction query address, map link. Voice alarm, vibration alarm, speed alarm, remote pickup. SOS alarm, track playback, electronic fence. Computer PC query, APP client query (Andriod and Apple), WeChat query. Positioning accuracy: 5-10 meters. Vibration alarm Geo-fence SOS alarm Package includes: 1pc* Tracking device 1pc* USB charging cable 1pc* User Manual Please note: 1. Our this GPS Tracker can only work with 2G GSM network,it does not support 3G 4G or 5G network.If your 3G 4G SIM CARD can also support 2G network, then it is ok to use. 2.Our this tracker need to use a sim card, the package has no include any sim card,please buy the sim card from your local market.