In addition to the three LED indicators which show power, LAN and Powerline status, there is a GB Ethernet port and a "Pair" button on the front and bottom of these units. They are that simple and easy to use and setup. The kit comes synchronized and all I had to do was plug them in. If for some reason, you don't get a "Powerline" LED indicator, simply press the pair button on each of the units and you'll soon be connected. It is really that easy...
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