... Mpeg-4 compression DVR CardVideo Input:1 -- 4 Channel Video InputAudio Input:1 CH Audio input (from Sound ... TW6805, 10-bit ADC with 4H comb filterDisplay Screen:1 / 4 Full ScreenColor Adjust: Adjustable Light, Contrast, ... Fast 1X,2X,4x,8X / Slow 1X,1/2 X,1/4 X,1/8XUser Right:Multi User with Personal User ... Alarm signal input & 4 ch Relay output (SV Alarm I/O Card Needed)Watchdog:Hardware watchdogTV OUT ...