As the name implies wireless camera means that camera is employed while not wire. A wireless camera is that the best thanks to transmit audio and videos to the receiver while not use wire. a number of these cameras use wire for power, however powered cameras also are on the market. There are 2 sorts of wireless cameras analog and digital. In analog camera transmit audio and videos signals through frequencies. The vary of transmit signals is around three hundred feet. during this transmission signals is encoded into the information packet and transmit to the destination address. top quality audio and video of this camera.