Microsoft is testing a feature for Copilot Voice that will let Windows 11 users start a conversation with the app by saying “Hey Copilot!” Windows Insiders who have the updated app can try it out once they opt in and activate the feature.

According to a blog post, you’ll need to enable the feature for it to be able to respond to the wake word. Also, the update isn’t available to all Insiders right away, but it is rolling out to testers worldwide who have English set as their display language. To find out if you have it, check your Copilot app version to see if it’s 1.25051.10.0 or higher.

Once it’s activated, you’ll see the Copilot microphone floating UI on the bottom of your screen and get a chime notification that shows it’s listening in.

The FAQ also says that it’s using an on-device wake word spotter with a 10-second audio buffer, and isn’t sending clips to the cloud or saving them locally. It can recognize the wake word even if you’re offline, but for the Copilot Voice feature to actually do anything, you will need internet access so that it can access cloud processing capabilities.