If you can't pick between music and outdoor adventures, I think the Waterproof Portable Wireless Outdoor Speaker by Geega is something that you ought to have. This waterproof, durable, and portable speaker has been specially designed to work in moist environments, as well as on the go. Equipped with a built-in microphone for taking calls hands-free, it works with a wide range of tablets and smartphones. Great as a portable speaker for anyone who's always camping, hiking, biking, or just chilling outdoors, this product can be a cool item for anybody who loves music.
A truly universal device, these speakers receive 4.3 out of 5 stars on Amazon with users claiming it looks really cool, works really well and is easy to take wherever it is needed. However, it does not hold a charge as much as one user has expected.