The EWA Portable Bluetooth Speaker is on sale at Amazon

When you need better audio than your phone provides, the answer is a Bluetooth speaker — but not just any Bluetooth speaker, oh no. You want the EWA A106 Portable Mini Bluetooth Speaker, a sound system that fits in the palm of your hand. Literally. This thing is barely six ounces and measures just 1.89 by 1.54 inches. In other words: tiny. You can grab it for $18 right now, down from $40.

It's tiny, loud and somehow also waterproof? What a clever design!

Let's get the elephant in the room out of the way: speakers need size. It's just physics — yet somehow, this speaker seems to bend the rules a bit. It has a 3W neodymium driver, which means it can be both loud and balanced without the distortion so often found in other models. It even has a passive radiator to deliver an impressive bass that belies its tiny size.

There are no inputs outside of Bluetooth, though. According to EWA, all of these were done away with in order to preserve space. The speaker doesn't have a 3.5mm jack, a microphone, or even an NFC reader (although we're not quite sure why a speaker would need one of those, anyway).

The battery life is nothing to scoff at, either. It guarantees five hours of play time, or up to eight hours if you keep it at 50% volume. A half-hour charge will give you an extra three hours. That's long enough playback time for nearly any party you can think of. The stylish design is nice, too. The speaker comes in rose gold, black and silver — and they're all on sale. They even come with a one-year warranty and a 30-day risk-free guarantee.

Nearly 30,000 people have given this speaker a perfect review. "Fell into the lake and survived!" one fan said. "We took this mini Bluetooth on our vacation to the lake. I had no intention of testing the claim to be waterproof until it fell off the kayak into the water. Thankfully it came with the small clip that I had clipped onto my waterproof bag that floated. Not only did the speaker continue to work, but the sound was still great."

"Loving this small but mighty speaker," another shopper shared. "I just wanted something small for my office that didn't cost me an arm and a leg but would stay connected to my Pixel. I got that and so much more. This speaker was super easy to connect to my phone and it stays connected. It also charges pretty easily, and the sound is wonderful."

'Small but mighty,' according to fans.

The reviews quoted above reflect the most recent versions at the time of publication.

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)