Google's Casting options are currently limited to flinging videos from your phone to your TV - but that's all set to change in 2015.
Later this year, the tech giant will introduce the ability to send content from a range of music streaming services to networked speakers around your home.
Using the music casting function will be just as simple as its video counter part: simply tap the cast button in a compatible Android, iOS or web app. Supported apps at launch will include Google Play Music, Pandora, TuneIn, Rdio and Deezer. A full list of compatible apps can be found here. Interestingly, there's no support for Spotify - or at least not at launch.
The neat thing about Google Cast for audio is that the speaker will handle the streaming, rather than the mobile device, à la Spotify Connect. This means you won't go through your phone or tablet's battery in the blink of an eye.
In order to use Google Cast for audio, you'll need compatible networked speakers or soundbars. Google has announced that LG, Sony and HEOS by Denon will be the first three launch partners, with many more to be announced later in 2015.
Google is also working with audio chip manufacturers to create a "Google Cast ecosystem" which will include "Android TVs, games consoles and set-top boxes".
The first Google Cast compatible speakers are expected to be released in the US this Spring. European release dates are yet to be confirmed.
READ MORE: All the latest news from CES 2015