Samsung announced today that it’s launching a new free and ad-free music service called “Milk Music” that’s powered by Slacker and available to customers of select Galaxy devices. Samsung says the app, which is available now on available as a download on Google Play, is “fully customizable” and offers over 200 stations and a library of over 13 million songs.

“Milk Music introduces a fresh approach to music that reflects our innovation leadership and our focus on creating best-in-class consumer experiences,” said Gregory Lee, president and CEO of Samsung Telecommunications America and Samsung Electronics North America Headquarters. “We’re offering consumers amazing, rich music experiences built around what matters most to them and their lifestyle.”

The service is launching today in the US and available to those with a Galaxy S® 4, Galaxy S® III, Galaxy Note® 3, and Galaxy Note® II  as well as the upcoming Galaxy S 5.  Samsung added that it will soon offer “unique music programming from top selling and emerging artists available exclusively through Milk Music.”

While Samsung is promoting the service as completely free and free of ads, the Google Play page for the app says that the app will only be without ads and free for a for a limited time. It’s unclear if Samsung is referring to the ads or the service being free of charge, but it appears that it will either be implementing advertisements or a fee for the service in the future.

Here’s a list of features from Google Play:

• Stumble across new hits and old favorites with a turn of the dial.
• Music plays instantly, as you scan through stations.
• No registration or set-up required.

• Customize the dial to show only genres and stations you like.
• “My Stations” collects all the stations you love and those you create into a single station that’s easily accessible on the dial.
• Fine-tune stations based on popularity, novelty and song favorites.

• Listen to over 200 genre stations, curated from a music library of over 13 million songs.
• “Spotlight” offers a curated selection handpicked by music tastemakers and influencers.

The app is available to download now on Google Play.