AHD DVRs are designed to receive, record and playback audio and video from surveillance cameras. One DVR can be connected with 4, 8 or 16 AHD cameras or analog ones. There is a possibility to preview the video in real-time or video archive from any place in the world by using a PC, tablet or mobile phone. The DVR Partizan has 3 recording modes:continuous, scheduled or motion detection. Transferring video archive can be done through network or through removable media as well. AHD DVRs have intuitive interface. Besides audio and video,some models are equipped with alarm inputs and outputs.