Wireless Cameras are perfect for the safety and security of people. They function by transmitting video and audio signals to a wireless receiver which is send through a designated radio band. Some wireless security cameras require a cable or wire for power supply but some of them are battery-powered, making them truly wireless. Wireless Video Surveillance has proven to be very useful regarding security of households and businesses and their installation costs are also very low. These Wireless cameras can be installed in inaccessible places which was previously unthinkable with standard wired camera.