For your own safety, security and/or secrecy, you probably have wished many times to be able to see through walls, At last, the latest technology has granted your wish with this miniature color spy video camera measuring less than an inch on every side, This tiny wireless system Features, next-generation 2, 4 GHz circuitry, That eliminates cordless phone interference so you can send color digital images to your monitor up to 300 feet away, (Three hundred feet is the length of an American football field, ) The four pinhole cameras have an 80-degree field of view and operate on a 9 volt battery each; the wireless receiver hooks up easily to your computer, Camera Specifications, Color 380 Line OmniVision Sensor @ 2 Lux, 300 Foot Range, Operates on a Single 9 Volt Battery, 2, 4GHz Wireless Receiver w/ USB Adapter, Size = 2/3"" Cube, Field Of View 80 Degrees, Pinhole Style Lens, NTSC (U, S, A, ) Video System, Operation is SIMPLE, Anyone can use this amazing wireless camera, Simply snap a 9 volt battery onto the camera/transmitter unit, Attach The Wireless Receiver To Your Computer, Covert video surveillance has never been easier, With the ability to use a single 9 volt battery, concealment is no problem, Hide in a plant, a book, a video case, air vent, automobile, the only requirement is to make sure the small pinhole lens is facing the video surveillance target, When properly placed, the wide camera angle will give you a complete view of a normal size room, Typical Applications For This System, Nanny Camera, Residential Surveillance, Business Surveillance, Automobile Security / Back-Up Camera, R/C Enthusiast in Airplanes and Helicopters, Motorcycle Helmet Camera, Great For Any Application Requiring Small Size and Portable Use, OS Support: ALL VERSIONS OF WINDOWS (Includes, Win 7 and 64Bit OS), Technical Specifications, 1 2, 4GHz Wireless Receiver w/ Built-in USB Adapter, 1 USB Cable for PC Hook Up, 1 Video Cable For Receiver To VCR/TV Hook Up, 4 9V Battery Clips for Camera, 1 Power adapter for each Camera, 1 Power adapter for Receiver, 1 Software Disc, SKU: MNGD283