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Many of us enjoy the on-the-go convenience of music at your fingertips: your favorite playlists on your phone, a digital library on your laptop, streaming while you sleep. But you don’t have to sacrifice sound quality to a tiny smartphone speaker. With the right portable wireless solution, you can enjoy your favorite songs and albums outdoors, at the gym, at work, at a barbecue in the park — wherever life takes you. And right now, Amazon has a great deal on the incredible $350 Sony XG300 Portable Bluetooth Speaker, which is just $138 for a limited time.

With its dustproof casing and IP67 waterproof rating, it’s safe to take with you into the elements, and it has a USB-C charging port for maximum convenience. It’ll run for up to 25 hours on a full charge, or you can use the Quick Charge feature to squeeze another 70 minutes of playtime out of a 10-minute recharge. You can connect it to all your Bluetooth-equipped devices or wire it in with a 3.5-millimeter audio jack.

Sony XG300 Portable Bluetooth Speaker, $138 (was $350) at Amazon

Courtesy of Amazon

“The sound quality is absolutely incredible,” one reviewer wrote. “These speakers provide an immersive audio experience, allowing you to truly feel the music and get lost in its rhythm. Whether you’re enjoying your tunes or cranking up the volume for a dance party, this speaker is guaranteed to impress.”

“This box booms,” said another satisfied shopper. “[The] thing is a tank, both sonically and mass-wise. Compared to some other wireless speakers of comparable size, it weighs a ton. But it has that amazing Sony audio build quality that makes you understand the reasoning behind the heft. The bass boosted low end is incredible. It’s no 12-inch PA speaker, but this would easily get you a noise complaint from your apartment neighbors at full wack.”

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If you’re ready to give your favorite music apps a proper audio upgrade, the Sony XG300 Portable Bluetooth Speaker is a phenomenal value, marrying the golden-age sound of CD boomboxes with the modern usability of Amazon Music, Apple Music, Spotify, and YouTube.