DSJ-D7 is Shenzhen City Granville electronic technology limited company research and development of a single law enforcement police video and audio recorder, contains multiple most new audio processing technology, complete function, reliable performance, with independent intellectual property rights, patent right. Not only the traditional digital camera, camera, sound recording, but also a new laser positioning, white lighting, infrared auxiliary functions, on the design of double block battery can be replaced with the base can be charged at the same time, matching the vehicle bracket when the recorder used, it can be widely used in quantitative and qualitative and the police, industry and commerce, taxation and other law enforcement departments.