![](/-/media/Images/ProductImages/PolkAudio/Products/signa-s2/Polk_icon_1.png)
HDMI Audio Return Channel (ARC)
Send audio from smart TV built-in apps and sources connected directly to the TV to the Signa S2 via a single HDMI cable. Also allows for control of the Signa S2 volume via the TV remote control (requires CEC enabled TV).