This "knock off" counterfeit is just showing up in the marketplace. Because the original Car Key DVR camera is a patented product small shops have redesigned it to accept a micro SD card. The unit has a cheap inexpensive CCD chip and limited angle lens. Claims of 640x480 video resolution are false (it is 352x288) and playback frame rate is choppy at 20 FPS. We can purchase this unit for 1/3 rd the price of the original quality product but refuse to do so. Buyer Beware.