This is a 4-channel DVR that records clear video with Full HD resolution. It gives you a full view of what's happening both on the road and inside your car. One handy feature is the built-in GPS that tracks your car's location, speed, route, and other information in real time. The DVR works well in low light and at night thanks to sensitive sensors and infrared illumination. It has a loop recording feature that continuously records and re-records old videos when your memory card fills up. Well, the installation of this DVR itself only takes a few minutes with the included mount. You just need to attach it to your windshield, insert your SD card and plug it into your car's power jack.