7 Inch 4 Channel LED Combo DVR / LCD Monitor DVR

*H. 264 video compression with LCD Monitor DVR. *4ch real-time recording and playback with D1 resolution; *4ch video input and 1ch output, 1ch VGA output; *4ch alarm input and 1ch output; *Audio: 1ch microphone input and 1ch speaker out; *Built in OSD menu with 21 languages. *Support USB backup and mouse and 1pc 2T SATA HDD. *Support network, RS485 port, support 18 PTZ protocols *Support 3G mobile phone viewer (Win CE/Symbian/iPhone/Blackberry/Android)