Today Google announced that it has sold 25 million Chromecasts, the company’s cheap streaming dongles that let you send music, photos, and videos from your phone to a TV or an external speaker. That’s 25 million units sold since 2013.

We last heard about Chromecast in September, when Google announced it had sold 20 million units and unveiled its first major updates to the product line: Chromecast 2 and Chromecast Audio.

It’s hard to weigh whether the 25 million unit milestone is actually a big deal or not, as Chromecast doesn’t really have a noteworthy direct competitor — similar offerings from Apple and Amazon are pricier and don’t really do the same things. For reference, Apple TV hit 25 million units sold back in January 2015.