4 CH H.264 Pentaplex Realtime D1 Recording Network DVR, 4 CH audio input, 4 CH alarm input,1280*1024 VGA Output, Support D1 Recording, 4 CH Playback, 1x SATA HDD, Mobile Phone Surveillance. Standard Mini 1U Dimension • Pentaplex mode: recording, playback, setup, backup, network and mobile phone surveillance simultanously • CIF Realtime recording; D1 recording supported • Full channel CIF simultaneously playback with 4 ch audio • Powerful remote surveillance, playback, recording, control, menu setup, recording backup • Perfect support of IPhone, IPad, Blackberry, Google phone, Symbian and Windows mobile • Support PTZ control with preset and auto-cruise • Flexible Display mode : Auto Switch, Full Screen, Quad/9/16, etc.