ALLOWS FOR SIMULTANEOUS CONNECTION OF LOREX® OR SYLVANIA OBSERVATION CAMERA TO BOTH THE MONITOR ;& MULTI-CHANNEL DVR ; 6-PIN DIN OBSERVATION CAMERAS CONNECT TO LOOPING COUPLER & VIDEO SIGNAL IS SPLIT, ALLOWING FOR THE VIDEO CAMERA SIGNAL TO GO TO THE OBSERVATION MONITOR & ANOTHER DEVICE SUCH AS A DVR OR ANOTHER MONITOR; 47 FT