Right now, a refurbished Sony SRS‑XB100 portable speaker is just $34.99 on Woot, a 42% discount off the price of a new unit ($59.99). Whether you choose to use it as a shower speaker, a travel companion for adventures, or just a tiny powerhouse that takes up minimal space at home, this compact Bluetooth speaker is a cheap but effective option with free shipping for those who have Amazon Prime. If you don’t have prime, it will cost $6 to ship.

Rated “Excellent” by PCMag, this durable speaker features an IP67 rating, ensuring it’s dust-tight and fully waterproof. While a Bluetooth signal won’t travel underwater, the speaker can be submerged for up to 30 minutes and can survive heavy rainfall. Sony claims that it takes around 4.5 hours to charge, but that will get you 16 hours of battery life, though that depends on the volume. It also comes with a strap to make it more portable. 

There’s no companion app, but that’s to be expected for the price point. Its sound is surprisingly punchy for its size and cost. While it doesn’t have app-based customizable settings, the sound quality still holds up well against similarly sized models. PCMag notes that you can get cleaner playback on bass-heavy tracks by hanging the speaker by its strap. It also has an echo-canceling speakerphone mic that excels over its predecessor.

While this refurbished version is fully functional with a 90-day warranty, it may come with some signs of wear. Additionally, Woot only ships to the 49 contiguous states in the United States.