ENHANCED WIRELESS TECHNOLOGY ELIMINATES INTERFERENCE FROM MOST HOUSEHOLD DEVICES; RECEIVER AUTOMATICALLY SWITCHES VIEW BETWEEN CAMERAS; INDOOR OR OUTDOOR CAMERAS WITH 23-FT NIGHT VISION RANGE & MICROPHONE; CAMERAS CAN BE BATTERY OPERATED FOR PORTABLE WIRELESS OPERATION; DESK/WALL/CEILING-MOUNTABLE CAMERAS; INCLUDES POWER SUPPLIES FOR CAMERAS & RECEIVER, RCA VIDEO OUTPUT CABLE & BATTERY ADAPTER CABLES FOR EACH CAMERA