["Features:\n1. the volume is ultra-small, GPS is positioned within 10 meters, and can be positioned globally.\n2. the call is clear, remote control.\n3. computer, mobile APP view baby and convenient.\n4. set up an administrative account, managing multiple devices is more convenient.\n\nSpecification:\nChip: MT2503/MTK3333/MTK5931\nMemory: 32M Flash Memory\nRF Power Amplifier: RDA6625E\nMotherboard stack size: 20*35*4.5mm (thickness is the total thickness of PCBA+GPS antenna)\nWorking environment temperature: -20 ° C - +70 ° C\nWorking environment humidity: 20%-80% RH\nSIM card: for Nano SIM card holder\nGSM band: 850MHz/900MHz/1800 MHz/1900MHz\nGPRS: Class 12\nBattery: Charging 5V 3.7V 800mAh\nStandby average current is less than 2ma (determined by connection method)\nI/O interface: built-in Micro 5pin\nSpeaker: 0916 specification AAC\nMIC: High-definition silicon wheat (sound can be heard within 10 meters)\nSensor: 3D G-Sensor\nTF: Support 32G long recording\nGPS positioning degree: within 10 meters\nWIFI positioning degree: within 50 meters\nGSM positioning degree: 50-200 meters\nSpeed: 0.1 for m / sec\nGPS positioning time: cold start -38s (Open for sky) hot start -2s (Open for sky) specific for time will be affected by the environment\nShell: PC\nGSM antenna: PIFA antenna\nStandby time: determined by battery capacity and connection method\nWorking voltage: 3.5-4.2V (3.4V low power automatic shutdown)\nCharging current: charging 5V 800mAh (current can be set according to different battery capacity)\nQuantity:1Pc\n\nNote:1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\n 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:(No Retail Packages)\n1 x GPS Tracker"]