Support for Voice Control with Amazon Alexa is now available for the MCA-66, MCA-88, MCA-88X as well as the XSource, XZone4, and XZone70V. Enjoy the convenience of voice control for all of the most popular system commands. Turn rooms on or off, adjust the volume, control the music, and even play your favorites, quickly and easily with voice commands. Ask your Russound Dealer for more info.