Feature: 1. Feedback Error: SMS report error and operating information; WeChat, SMS, telephone, for IOS and for Android App, Wap and Internet access various positioning methods. 2. Intelligent Detection: GPS tracking device automatically uploads when the vehicle is moving, automatically sleeps when parking, and will not run out of battery power and cannot start. 3. Positioning Function: GPS OBD car locator can be used for base station positioning in areas without GPS signal (basement, etc.), and the GSM quad band system is universal. 4. With Battery: OBD GPS car tracking device has built in backup battery, which can realize the removal of power failure alarm (can be turned off). 5. Alarm: The GPS car tracking device has a built in vibration sensor to realize vehicle intelligent vibration alarm and anti theft. Ultra wide working voltage, universal for 12‑24V vehicles. Specification: Item Type: GPS OBD Car Locator Material: ABS Colour: Black GSM Module: 850 900 1800 1900MHz GPS Sensitivity: -159dBm GPS Positioning Accuracy: 5m/16.4ft GPS Center Frequency: L1, 1575.42MHz GSM Positioning Accuracy: 100-500m/328-1540ft Speed Accuracy: 0.1m/0.33ft Built-in Battery: Lithium ion Battery Battery Capacity: 4000mAh Scope of Application: Cars, Passenger Cars, Trucks. Package List: 1 x GPS OBD Car Locator1 x Manual