Usage Tips: OBD Port: Support 16-pin standard OBDII port Network: GSM/GPRS Frequency: 850/900/1800/1900 MHz GPS Chipset: MTK high sensitivity chip GPS Channels: 66 Tracking Sensitivity: -165dBm Positioning Accuracy: Less than 10 meters First Fix Time (Turn on): Cold state less than 35 seconds Hot state: less than 1 second Working Voltage: 9-36VDC GPRS Protocol: Class12, TCP/IP Working Temperature: -20 degrees Celsius to +70 degrees Celsius Standby and working power consumption: 5mA~50mA GSM/GPS Antenna: Built-in G-Sensor: Support Geofencing: Support Angle change Upload position: Support Ignition status detection: Support Memory capacity: 1400 locations Color: Black Material: ABS Package Contents: 1 * Host 1 * Screwdriver 1 * English Manual Only the above package contents, other products are not included. Note: Light and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/- 1-3cm.