SRS Labs CYP DCT-6S Television Volume Leveling Adapter Featuring SRS TruVolume, White Effectively controls the drastic audio spikes that occur when watching TV and are most noticeable when programming changes to commercial or when channel surfing. Reproduces sound that&#8217;s true to the original recording &#8211; at any volume level Produces clear audio with no unwanted artifacts or noise Easy installation between set-top-box or satellite receiver and TV - supports 2-channel audio from RCA input to RCA output ports (does not transmit multi-channel audio), with a simple Power and On/Off button RCA cables and Power Adapter included in box