... with wire and wirelessP.T.Z control functionUsers managementMulti-channel displaySupport 320x240/640x480 (NTSC), 352x288/704x576(PAL) standard ... resolutionsImage color adjustable for each channel, including contrast, lightness, hue and saturationMPEG4 compression format, ... PAL/NTSC/SECAM Compatible Power Consumption 8W 4 channel night vision 2.4GHz wireless security kits