Capture your moment wirelessly with colors using one of the latest technology and version available for a miniature 4 chenel receiver in the market. What's more. . . You can listen with the built-in mic in the camera. This product employs cmos . . /image sensor and can be matched with lenses of different angle focuses or specifications according to the user's requirement. The camera comes with a metal bracket mounting / or plastic mounting and can be manually focused for best viewing angle and picture. Compatible in the pal or ntsc system. Suitable for video conferencing, video phone, video doorbell, video electronic mail, pc multimedia, toys, security monitor, medical instrument, vehicle rear view, etc. The camera can send video for 8 hours non-stop if powered by a 9-volt alkaline battery (duracell/energizer). No work duration limited when it is hooked up with a ac-dc adaptor. Installation is simple with an ordinary television. If needed, the video can be recorded in an ordinary vcr without adding any other accessory. The camera can run 24-hours without overheating.