Description: Multiple positioning : GPS + AGPS + Wifi + Beidou + LBS Global GSM+GPRS quad-band system: 850/900/1800/1900MHz Location query: You can query the user's specific location through a mobile phone or computer Electronic fence: Delineate an area on the map with the device as the center, and alarm immediately when you leave the area Historical track: query the running track of the device within three months anytime, anywhere Specification: Model: G03 Material: Plastic Color: Black Function Support: Real-time, Historical Route, 850mAh, Tracking Playback, Voice Monitor, Voice Recording, Vibration Alarm, Geo-fence, SOS Call, APP Tum-on / Power-off , Multiple Devices Management Chips: MT2503/MTK3333/MTK5931 Memory: 32M Flash Memory RF power amplifier: RDA6625E GSM frequency band 850MHz/900MHz/1800MHz/1900MHz MIC: HD silicon microphone (sound can be heard within 10 meters) Sensors: 3D G-Sensor TF card holder, max support 32G GPS positioning accuracy within 10 meters WIFI positioning accuracy within 50 meters GSM positioning accuracy 50-200 meters (depending on network conditions) Speed accuracy: 0.1 m/s GSM Antenna PIFA Antenna Size Chart: 50x29.3x15.3mm/1.97x1.15x0.60inch Package Includes: 1 Piece GPS Tracker 1 Piece Rope 1 Piece Manual 1 Piece Charging Cable 1 Piece Package Box Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!