Update: This deal has ended.

Sony's XB10 Wireless Bluetooth Speaker is down to $38 on Amazon today. The speaker normally sells at $58, although it did drop to this price on July 11 for Prime Day. If you missed that deal, this is your chance for redemption.

The XB10 boasts 16 hours of battery life. It's also water-resistant with an IPx5 rating, which means it can withstand some blasts of water but shouldn't be submerged. You can also pair the XB10 with a second speaker to get stereo sound.

As for the sound, CNET's review says it does best with midrange audio, like vocals. It also has a lot of bass for a tiny speaker, but higher volumes and deeper bass frequencies will cause distortion. That's to be expected with a speaker so small it fits in your hand, but the output can still be considered impressive for its size.

The XB10 is one of Amazon's "certified Bluetooth speakers" designed to work with Echo devices. Pair it with an Echo Dot and tell Alexa to play your favorite music.

See at Amazon