Amazon Disables Alexa Voice Control Over Aux-In Playback on Older Echo Speakers

Amazon has confirmed that Alexa voice commands no longer work for controlling audio played through the 3.5mm auxiliary input on some older Echo speakers, ending a feature that let owners use their device as a basic smart speaker for non-streaming audio sources.

The change came to light after a user posted on Reddit that they had received a notification from Amazon acknowledging the shift. Tech outlet Ars Technica flagged the post, and Amazon subsequently confirmed that voice commands such as "Alexa, play" or "Alexa, pause" will no longer control playback when a device is connected via the aux-in jack.

Owners who relied on an Echo as a line-in speaker — for instance, to voice-control audio from a turntable, CD player, or non-smart audio source — will need to control playback manually going forward, since Alexa cannot recognize or interact with analog audio signals passed through the port.

Amazon has not detailed a technical reason for the change, nor said whether it affects all Echo models with an aux input or only specific generations. The company has also not indicated whether the functionality could return in a future software update.

The move is the latest instance of a smart-home device manufacturer altering or removing functionality on already-purchased hardware after the fact, a pattern that has drawn criticism from consumer advocates who argue that features present at the time of purchase should not be withdrawn without clear notice or an opt-out.

Amazon has not issued a formal public statement beyond confirming the change to the user who received the notification, and it is not clear how many Echo owners rely on the aux-in feature.