This speaker might be mini, but the sound quality is anything but small. Strap it to your backpack on your next hike or set it by the pool—don’t worry, it’s shock-resistant, waterproof, and dustproof—and you’ll turn any outdoor setting into a music-filled domain. It easily connects to your mobile device and has a battery that’s built to last throughout the day. The crystal clear, amplified sound can also be paired with another Trek Mini Adventure Speaker for a next-level stereo effect. When it’s time to relocate, toss it in your bag or hook it along for the ride with the durable built-in paracord rope.