DO-IT-YOURSELF PACK INCLUDES 2.4 GHZ DIGITAL WIRELESS CAMERA SYSTEM; INCLUDES 2 DIGITAL WIRELESS CAMERAS & 1 SPACE-SAVING 2-IN-1 7" LCD MONITOR WITH SD RECORDER; WEATHERPROOF IP54 COLOR CMOS CAMERA FOR INDOOR & OUTDOOR USE; INCREASED RANGE OF TRANSMISSION UP TO 200 FT BETWEEN WALLS & UP TO 490 FT IN CLEAR LINE OF SIGHT; NO WI-FI INTERFERENCE & NO INTERFERENCE FROM CROWDED ANALOG 900 MHZ/2.4 GHZ/5.8 GHZ/6 GHZ DEVICES; CAMERA WITH BUILT-IN IR LEDS FOR NIGHT VISION UP TO 30 FT (B/W); SECURE SIGNAL; BUILT-IN MICROPHONE FOR AUDIBLE RECORDING VIDEO OR PICTURE TO SD CARD (NOT INCLUDED; SUPPORTS UP TO 32 GB); AUDIO & VIDEO OUTPUT RCA INTERFACES FROM RECEIVER TO MONITOR FOR DISPLAY; UPGRADEABLE BY ADDING 2 MORE DIGITAL WIRELESS CAMERAS (UP TO 4 TO 1 LOCATION);* DISPLAY 1 CHANNEL OR QUAD SCREEN