Feature 1Wide Application: The black shell is easy to hide and is very suitable for tracking cars, trucks, teenagers, spouses, seniors or assets. 2High Positional Accuracy: Builtin GSM antenna, 850/900/1800/1900 MHZ GSM frequency; 159 dBm GPS sensitivity, real time tracking at intervals. 3Multifunction: Resend data from signal dead zone; GPS inflection point supplementary transmission; APN adaptive status query; Low power alarm. 4Driver and Vehicle Alerts: Overspeed alarm; Geofence alarm; Vibration alarm; Power failure alarm; History playback. 5OBD Port: No battery needed, powered by OBD. Locate Loved ones'phones instantly when they're walking, biking, or on public transit.Item Type:Car Tracking DeviceMaterial: ABSGSM Module: RDA8955GSM Frequency: 850/900/1800/1900 MHZLBS Positioning Accuracy: 100-500 metersBuilt-in GSM antennaBattery: Lithium polymer battery 80mAh (included)GPS Chipset: ForU-blox 7020GPS Sensitivity: 159 dBmGPS Frequency L1: 1575.42 MHZChannel 35 channel check trackGPS Positioning Accuracy: 5-10m, 2D RMSSpeed Accuracy: 0.1m/sTime accuracy is synchronized with GPSGPS Data: WGS-84Hot Start: <1sHot Start: <38sMaximum Altitude: Approx. 18000m/19685ydMaximum Speed: 515m/sAcceleration Of Gravity: <4gWorking Voltage: 9VDC-36VDCWorking Current: 50mA-160mAWorking Temperature: -20-70Humidity: 5%-95% .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x OBD Tracking Device