Amazon has removed Alexa voice control for the 3.5mm aux input on several older Echo speakers, meaning users can no longer ask Alexa to play or pause audio coming through the wired connection. It's unclear why the feature was removed. The Verge reports: Ars Technica points to this Reddit poster claiming they received a message from Amazon and says an unnamed spokesperson confirmed the change. When contacted by The Verge, Amazon did not provide an on-the-record statement. The message does not include any explanation for why the feature was removed. It also doesn't mention any changes to audio output functionality like connecting an external speaker to an Echo Dot, and it appears that control of the port from within the app's settings menu still works.