Stream a “Line-In” audio input
Certain Play-Fi products have the capability to capture audio from one of their on-board audio inputs and then redistribute it through a Play-Fi group. We call this Line-In Streaming, and speakers paired together streaming from Line-In are called a Line-In Zone.
To initiate a Line-In Zone, simply tap on the Add Zone button—which is the little + icon at the top of the main Play-Fi Control screen—then select the Line-In option. If your network has a Play-Fi product that supports Line-In Streaming, the Line-In Zone Module will display and list the products you can pick to lead the zone.
After selecting the product, if it has more than one audio input, you'll be able to select which one you'd like as the source, and then you'll be able to select the additional Play-Fi products to join to the Line-In Zone.
Once everything is up and running, you can close the app or leave the network, and the Line-In Zone will continue to run so long as there is content being played on the input.