Features: Multiple Positioning Mode: + AGPS+LBS+WIFI + TF Card and APP Voice Recorder. Automatic Time Update: Precise time service and no manual time adjustment is needed. The user's specific location can be inquired through the cell phone APP or the computer. Support: Real-time +AGPS+Wifi+LBS Positioning, SOS, Voice Monitoring, Call Family Numbers, Pedometer, Geo-fence Alarm Reminder, historical track, Alarm clock, Class mode, Power save mode. 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 will be triggered off immediately once the user of the device goes into or out of this area. High Integration PCBA Mini Positioner, suitable for Kids Children Pets Car,etc. Specifications: Model: S7(ZX303) Chip: MT2503/MTK3333/MTK5931 Storage: 32M Flash Memory RFPA: RDA6225E Size: 57*24*16mm Working temperature: -20℃-70℃ Working humidity: 20％-80％RH SIM card: Nano SIM card holder GSM Band: 850MHz/900MHz/1800MHz/1900MHz GPRS: Class 12 Battery: Charging 5V 3.7V 1000mAh Standby Average Current: Less than 2mA I/O Interface: Built-in Micro 5pin Horn: 0916 ACC MIC: Built-in HD silicon microphone Sensor: 3D G-sensor TF: Support Max 32GB super long voice recording Positioning Accuracy: within 10M WIFI Positioning Accuracy: within 50M GSM Positioning Accuracy: 50-200M Speed Positioning Accuracy: 0.1M/second Positioning Time: Cold Boot-38s(open sky) Warm Boot-2s(open sky) Shell material: PC material injection molding GSM Antenna: PIFA Antenna Standby time: Depend on the battery capacity Working voltage: 3.5V-4.2V Package size: 8*6*3mm Package weight: 40g Package list: 1 x DIY Kits Module 1 x User manual