Product function: Multiple Positioning Mode: GPS+ AGPS+LBS. Worldwide GSM+GPRS 4-frequency System: 850/900/1800/1900MHz. Track: The user's specific location can be inquired through the cell phone APP or the computer Fence: Designate an area on the map by setting the device as the center point and the alarm be triggered off immediately once the user of the device goes into or out of this area. PlayBack: Inquire the moving of the device in the past 3 months anytime and anywhere SOS: In case of emergency, the SOS button and the device send out the call and message for help to the guardian. Find Device: The lost device can be found through the APP on the cell phone Voice: With the highly sensitive microphone, the sound around the device can be heard in real time in case the emergency happens to the user. Remote Power-off: The device can be turned off through the APP on the guardian's cell phone Remote Restart: The device can be restarted through the APP on the guardian's cell phone. Intelligent Power Saving: The device turns off/on the GPS and data upload in the time range specified through the APP on the guardian's cell phone Special Feature:Internet Connected Battery Life:30 Hours & Up Out Power:0.8W Model Name:G06 Voltage:5V Gps Module:Yes GPS type:GPS Standby to 10days Working to 5- ( depends on the upload interval ) GSM network: (Quad band) 2G GSM , 850/900/1800/1900MHz GPRS standard: Class 12, IP GPS Positioning accuracy: 10-15m Battery 850mah Standby time GSM standby (GPSclosed) 15 days GPS standby (10 minutes once positioning) 100hours GSM/GPS Antenna Built-in design Working ptemerature: -20℃ ~ +70℃ Working humidity: 20% ~ 80% RH Positioning time cost (open ) Cold start 38 Sec Warmstart 29 Sec Hot start 5 Sec Host size: 50 x 30 x 15mm RFPA RDA6625E Host weight: 30g Voice Recorder and Monitor