Wireless cameras do exist, however their application is more limited than the standard wired solutions. Recording can be performed directly on the camera (through an SD card) or on a PC. A Wi-Fi connection is necessary for these cameras to work properly. However, it is important to keep in mind that wireless video streaming is not entirely secure. In general, a wired solution can be applied in most locations, however, wireless cameras are also readily available and are an option that can be considered.