Function: Realtime GPS/AGPS/Wifi/4G Cat 1/ LBS Positioning, SOS, Voice, Call Family Numbers, Geo Fence Alarm Reminder, historical track, Alarm Clock, Class Mode, Power Save. GPS Positioning Time: Cold Boot-38s(Open field), Warm Boot-2s(Open field), The specific time is affected by the environment. Working Temperature: -20 - +70 Network: 2G+4G 4G: LTE-FDD: B1/B3/B5/B7/B8/B20 LTE-TDD: B34/B38/B39/B40/B41 2G: GSM: B3/B5/B8 Wifi: WiFi 802.11b/g GPS: Support external active GPS antenna, support GPS+AGPS SIM slot: Support NANO sim card GPS Positioning Accuracy: Within 10 meter outdoor GPS Motion Accuracy: 0.1 meter/second WIFI Positioning Accuracy: Within 50 meters GSM/4G Positioning Accuracy: 50-200 meters(Depending on ) Battery: Support rechargeable 3.7V 700mAh Li-polymer battery Charging port: Magnetic charging port Charging Current: DC 5V/0.5A-1A(depend on your battery capacity) MIC: Built-in High-Definition Silicon microphone Sensor: Build-in 3D G-sensor Material: Plastic + metal colour: green Package Contents: 1 x Pets Locator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.