Features: This device needs a SIM card, which not included and this GPS tracker for vehicles has worldwide coverage. You can set Geofences that will alert you when the wearer has entered or exited defined areas to ensure the safety of your loved ones. You can also set speed alert so you will get alerted if your vehicle exceeds a speed limit set by you. Unlimited GPS tracking historical data saved during service, so you can check the historical data. Wide application, suitable for most vehicles. Easy to install, just plug and play. Specifications: Material: plastic Color: black Working voltage: 9-36V DC Operating temp: -20-70 Tracking sensitivity: -165dBm Location accuracy: 10 meters CEP Package weight: 68g Package size: 11 * 7.8 * 3.8cm Package List: 1 * GPS Tracker