Here’s another unexpected surprise from Amazon’s hardware event in Seattle, as the announcements have started coming fast and furious. Alexa Guard is a home security product that integrates with existing Echos. When the user is away, the product flips the smart speakers in “Guard Mode,” so they listen for sounds like breaking glass.

Alexa Guard features smoke and carbon monoxide and integrates with existing security products, including those from ADT and Amazon’s own Ring products. The company didn’t highlight much in the way of information beyond that, but it promises that the offering is part of a much larger security offering, moving forward.

Along with the Guard, the company also announced the new Ring Stick Up, a camera powered by batteries that works outdoors.

Check out our full coverage from the event here.