The Ultimate Ears Miniroll is the ultimate musical companion. It’s a super small Bluetooth speaker, so it’ll fit into a backpack without a problem. It’s sturdy too, which will let it survive even the most traumatic of outdoor mishaps. The small but mighty device is a great deal at its original price — but right now, you can get it for just $49.

The Wonderboom 4 is built for the outdoors with a rugged design and sturdy build. We really liked the speaker in our Ultimate Ears Wonderboom 4 review, especially the surprisingly bassy sound that you might expect from a larger speaker. Plus, 16 hours of battery life means you'll be able to get through most of the day on a charge.

The Ultimate Ears Boom 4 speaker is a waterproof speaker than can deliver 360-degree sound with deep, accurate bass. Its battery can last for up to 15 hours and we like that it's rated IPX7 waterproof and drop-proof up to 15 feet. Did we mention it can also float? The Boom 4 is also perfect if you want to grab more than one speaker for some extra sound — you get more separated sound if you use the connection capability.

This Bluetooth speaker has an impressive 20-hour battery life and an "Outdoor boost", which increases bass to fill outside areas. The IP67 rating combined with this "Outdoor boost" makes this the ideal speaker for living it up in the park or at the beach, and at this price, it's kind of a shoe-in.

We rank this as the best Bluetooth speaker for parties thanks to its incredibly powerful sound. While it's heavy, and it's an older model, it delivers some of the best sound around with 24-hour battery life to boot. You can even use it as a power bank to charge your phone in a pinch.