Real-time positioning and precise positioning: real-time tracking, automatic location information display (compatible with Android / iOS application, web / WAP), real-time tracking, positioning in GPS / A GPS / LBS mode , positioning accuracy up to 5 meters Electronic fence (Geo-Fence): establishes a geo-fence for the device to limit its movement within a district. The device sends a message to the authorized number if it violates the district. No installation required: if the magnet is strong, the device can be installed quickly and stable. Simply adhere to any iron surface with strong magnets, even under the car for just a second Energy saving and waterproof IP58: Max. 90 working days with 5000mAh lithium-iron battery, IP58 waterproof design, dustproof, shockproof, no need to worry about rainy days Width: track the position of vehicles (rental of cars, trucks, motorcycles, freezers, boats, etc.) GPS MOBILE tracking on your IPHONE, Android phone, PC and MAC Real-time tracking with live reports and history. Look at the phone or the website. You can also get GPS coordinates via SMS