back up camera

I received my 4ucam wireless colour camera 2 days ago. The camera is about 1"square, 3" long with a little antenna, swivel magnet mount. The monitor is just a big bigger than a pack of 25 cigarettes and about as thick. Has video and usb output along with an SD card slot and both run on rechargeable LiIon batteries. 2 chargers are provided, AC and 12V DC. Works like a charm, paid about $110. It even takes video onto SD card so you can see how you crashed when backing up :E You can even add more cameras to the same monitor, it's 4 channel.