Audiovox XMEXT50 50 Foot Indoor/Outdoor Antenna Cable Extension Add 50 feet to the length of the your Home Antenna cable. Simply place the Home Antenna where you find the strongest signal. Then use the Extension Cable to connect the Home Antenna For use indoors or out: Weather-resistant rubber cover protects the connection to the Home Antenna. Compatible with all XM Dock & Play, Portable, and SIRIUS XM MiRGE radio Home Kits and Sound Systems. Home Kits are included with Portable radios, sold separately with XM Dock & Play and SIRIUS XM MiRGE radios. Boost your signal: An in-line signal amplifier boosts the signal strength through the length of the combined cable. Connect more than one: If an additional 50 feet is still not enough, connect up to two extensions together for approximately 125 feet of total cable Connect more than one:connect up to two extensions together for approximately 125 feet of total cable Easy setup: Simply place the Home Antenna where you find the strongest signal. Then use the Extension Cable to connect the Home Antenna to your Home Kit or Sound System. Easy setup:Then use the Extension Cable to connect the Home Antenna to your Home Kit or Sound System. Increase your Home Antenna length: Add 50 feet to the length of the your Home Antenna cable. Sound Systems sold separately.