450TVL high resolution camera for demanding surveillance applications 4.3mm lens giving 80anddegreeviewing angle Built-in microphone for audio recording Acts as a deterrent in hostile situations making it a great item for police patrols door supervisors etc Connecting to a portable recorder can produce high quality recordings of situations as seen by the individual Complete power & cable accessories included to offer output to a variety of devices Often used in more entertaining situations such as skiing paragliding mountain biking paint balling rock climbing & many more The camera comes with extra connections allowing you to use it with any recorder that has phono inputs for video & audio & it also comes with a separate battery box so you can power the camera from a standard square battery. In some cases the recorder can power the camera directly making these extra connections obsolete.