ZOSI 8 Channel AHD-720P DVR,Security DVR Recorder with HDMI,Playback,Internet & Smartphone Remote Accessible,Alarm(No Hard Drive) (1). Support TV, VGA & HDMI output synchronously (2). Please note :This AHD DVR only work for 720P AHD Cameras,it cannot show images with analog cameras ! (3). QR code scan via mobile device using our free ZOSI View app (available on iOS/Android).Live view and playback on your smartphone. (4). Intelligent motion detection email alert with images; Motion detection recording allows you save more capacity hard drive(Needs an internal hard disk,20g/day/CH for 720P ,it can't record or playback without hard drive) (5). All systems CE & FCC certified with qualified power supplies.Guaranteed for 2 Year & Free life time Tech Support