Vivitar Vida DVR (Used)
Digital video recorders, compared to traditional analog video recorders, use hard disk recording and are often referred to as hard disk recorders or DVRs. It is a computer system for image storage and processing, which has the functions of long-term recording, recording, remote monitoring, and control of images/voice. DVR adopts digital recording technology, which is far superior to analog monitoring equipment in image processing, image storage, retrieval, backup, network transmission, remote control, and other aspects