Covert Cameras for use with Lawmate Portable DVRs. These covert spy and covert hidden cameras use a single connection to the DVRs. Unlike non-Lawmate brand cameras, these cameras get power from the DVR and supply the video feed on one small cable. No extra batteries or connectors are required. Simply plug any of these cameras into your LawMate brand DVR and start recording. And don't worry, if you have an off brand DVR we've supplied the adapters you need to use with your current system until you get your own Lawmate portable DVR.