POWER LINE WIRELESS VIDEO TRANSMITTER & RECEIVER; CONVERTS ANY STANDARD RCA VIDEO SYSTEM INTO A WIRELESS SIGNAL; ELIMINATES INSTALLING LONG LENGTHS OF RCA CABLE; TRANSMITS WIRELESS SIGNAL THROUGH THE POWER LINES;ELIMINATING INTERFERENCE; SIMPLE POWER & GROUND HOOK-UP; PERFECT FOR USE ON LONGER TRUCKS, MOTOR HOMES,;BUSES & LIMOUSINES; WORKING RANGE: 150 FT - 200 FT; WATERPROOF DESIGN