Two new security cameras with control unit. Night time infrared lights in the cameras. Motion sensors with alarm warning at control unit. Two-way mic/speakers so you can talk to people on the camera’s view from the control unit. Automatic toggling between cameras. Use any computer monitor or TV with RCA input jacks. Ideal for being warned of someone approaching and being able to talk to them before unlocking a door remotely. There is no DVR with these cameras, although you could probably connect them to a DVR. Unlike most security cameras that have no audio or listen only audio, these are designed to allow 2-way conversations with the person in the camera view with a push-to-talk button on the control until. Please call evenings or weekends only.