OBD Port:Support 16 pin standard OBDII port Network:GSM or GPRS Frequency:850 or 900 or 1800 or 1900 MHz GPS chipset:MTK high sensitivity chip GPS channel :66 Tracking sensitivity:-165dBm Location accuracy: less than 10 meters Time To First Fix(open ):Cold status less than 35s Hot status: less than 1s Working voltage:9-36VDC GPRS Protocol:Class12, IP Operating temp.:-20 Celsius to and70 Celsius Standby and Working consumption:5mA-50mA GSM or GPS antenna:Built-in G-Sensor:Support Geo-fence:Support Angle change upload location:Support Ignition status detection:Support Memory Capacity :1400 positions Colour: black Material: ABS Package Contents: 1 x Host 1 x Screwdriver 1 x English manual Only the above package content, other products are not included. Note: Light 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.