The AIR-SA15R is an “S-AIR” compatible product. It is
also called the “S-AIR sub unit.” Connecting this unit
with an S-AIR main unit using “S-AIR” technology, you
can use each unit in a remote location.
For example, you can install this unit in the bedroom,
and then install an S-AIR main unit in the living room.
You can then listen to the music from the S-AIR main
unit located in the living room by controlling this unit