Soon you will just need to say "Alexa, turn on living room"
You can already play music from an echo dot through your MusicCast system by Bluetooth link or via the auxiliary output from the dot. Coming this fall though, MusicCast products will receive a free firmware update enabling control using Amazon's Alexa voice service. An Alexa skill adding support for MusicCast commands will be made available for Alexa-enabled devices, including Amazon Echo, Amazon Echo Dot, Amazon Tap and Amazon Fire TV. Together these updates will unleash an exciting new way to control your MusicCast system.