after purchase, fast installation on windscreen. very good image quality that can replay on pc. as it loads during operation by cord cigarette lighter, it is convenient to use with the autonomy of the unit. no red light such as a camcorder to the front of the device, which makes it more discreet. I recommend this very useful device when you have to do some drivers who do not respect the rules of the road. Image remains irrefutable evidence in case of problems. also possible pictures with this camera. I find that this device will render services. friendly.