This extension cable lets you hook your backup camera directly to the monitor, guaranteeing clear and complete images by eliminating the interference and unreadability that often occurs when wireless cameras are used with trailers and RVs. Features, Cable eliminates interference and poor communication commonly seen when wireless cameras are paired with long vehicles, 3-Piece set includes: 25 inches extension cable, Right-angle adapter, Coupler - add up to 3 extension cables to increase range (100 inches maximum distance), Product can also be used for playing audio from your iPod and portable CD player through your car stereo