Key Features: -Support 4 channels real-time video display, each channel can be renamed. -Support 4 channels audio input, 1 channel audio output and 2 channels video output. -Support auto sequential switching. -Support 1, 2, 3, 4 channels or PIP (Picture-in-Picture) multiple video display modes. -Each PIP position is adjustable. -Support digital zoom in/out, zooming area is selectable. -Support multiple video channels freezing at the same time. -Support motion detection alarm, detective area and alarm duration are adjustable. -Support video loss detection and alarm. -Support IR Remote Control. Parameters: Video System: NTSC/PAL Video Resolution: PAL: 720×576; NTSC: 720×480 Video Frame Rate: PAL: 100fps, NTSC:120fps Video Input : 4xBNC 1Vp-p,75Ω Video Output: 1 channel main monitor output, 1Vp-p,75Ω, 1 channel slave monitor output, 1Vp-p,75Ω Audio Input: 4xRCA Audio Output: 1xRCA Auto Switch Intervals: 0~99 seconds selectable Event Record: 60 groups in max Alarm Output: None OSD Language: English Customized Menu: Brightness ,Contrast, Saturation, Hue, Sharpness can be adjustable Power Consumption: 4.5W (350mA) Power Supply: DC 12V, 1A Operation Temperature: -10℃~ +60℃ Product Weight: 1kg Product Size: 210mm×130mm×40mm Note: this video quads support ana-log cctv security cameras ONLY, doesn't support AHD or IP cameras.