Features:

Recording: 4CH D1
Playback: 4CH D1
Video: 4ch in/1ch outpt
Audio:4ch in/1ch output
Alarm:1ch in/1ch output
HDMI:Yes
PTZ control:support

(1)All models support 3G/WIFI SDVR functions, all built-in IE plug-in, without having to download the installation.    
(2)All models are SDVR DVR / HVR / NVR triple design    
(3) All models support remote access to cloud services, plug and play(P2P), free domain names, routers do not do any settings.    
(4)Mobile remote access support (Blackberry, Symbian, Apple, Android, Windows mobile)