Amazon is offering a limited-time sale on the ultra-portable JBL Go 4 Bluetooth speaker that will save you more than ever. Here's the big price drop to shop before it's gone.

If you love listening to your music anywhere you go, then you absolutely need to take a look at this deal from JBL on the JBL Go 4 speaker over at Amazon.

The Sony SRS-XE200 X-Series Bluetooth speaker is 48% off ahead of Prime Big Deal Days. It comes with a corded strap, making it easy to tote around on your adventures. With a IP67 rating, it's water- and dust-proof, giving it a rugged build. Not to mention the 16 hours of battery life that keep the party going all day.

Affordable wireless audio has come a long way in recent years. Here are the best low-cost Bluetooth speakers we've tested, along with what you need to know when shopping for one.