Video input: 3VP-P CVBS; Simple and fashionable design with foldable stand; BNC input is for the connection of professional security monitoring devices so that the signal interference between them can be reduced to achieve the best signal effect; Built-in speaker & sound effect function; Picture reverses horizontally and vertically for different installation way; Input switching of 3 video modes; Multi-channel video receive function; High sensitivity strong interference resistance. Monitor mode supports auto switching of 4 videos 1~60s; Supports VGA input can work as PC monitor (640 x 480/60Hz，800 x 600/60HZ，1024 x 768/60HZ); Supports YPbPr input the picture will become clearer.