Start your security system off right by selecting a video-monitoring unit that's easy to install and use and expands to allow you to add to it at a later time. The 2.4G Wireless B&W 4-Channel Monitor comes with a single camera and lets you record its picture to any standard VCR. Both the camera and monitor come with power adapters, but if you prefer, the monitor can run on ten C batteries (sold separately), as well. This option gives you flexibility to move the monitor from room to room. The 2.4G Wireless B&W 4-Channel Monitor comes with one camera, but the system is expandable to four cameras, (each sold separately). Installing the system is so easy, you can have it operational within a minute. The 2.4G Wireless B&W 4-Channel Monitor system is also extremely flexible. Select either the auto or full-screen option. The monitor will scan through up to four different cameras automatically. Since the camera transmits its feed wirelessly, it doesn't connect directly to the monitor, and running cables isn't necessary. The camera's wireless transmission range is 300 feet in open space. The 2.4G Wireless B&W 4-Channel Monitor is compatible with all Lorex 2.4 GHz wireless devices (sold separately). Additional features include listen-in audio, for added security, and LED indicator lights that show the system's status