This PHONEX Wireless Phone Jack system includes the base unit (model P42192272) and one extension unit (P41192619). Just plug the base into an electrical outlet and connect to your phone outlet and it will send the signal to any unit plugged into another electrical outlet. It will work with your phone (either corded or cordless), fax machine, answering machine andyour DSS satellite system. No tools required...just plug it in and you're ready to go!Powered by eCRATER . List your items fast and easy and manage your active items.