A workaround would be to mute the device itself, and then use the remote (which has its own mic, and works well in noisy environments since you just hold it closer to your mouth).
Re:Amazon Echo Dot
by jethro_tell on Thursday March 03, 2016 @01:15PM
(#11218688)
but then I just have to carry a remote while I'm having a party.
'Everyone be quite so I can shout across the room to change my music'