Earfun Uboom Slim are equipped with a robust 20W full-range driver for a powerful sound experience. With enhanced bass and well-defined mid- and high-range frequencies, you can immerse yourself in an immersive soundscape that adds that little extra to your tunes that a spicy hot sauce does to your favorite dishes. The Uboom Slim not only sounds good, but it's also incredibly user-friendly. The simple and clean design allows for easy handling, so you can focus on your favorite music without any worries. And thanks to the built-in microphone, you can even take hands-free calls with the speaker. Perfect for keeping in touch even during conference calls. When it comes to travel, Uboom Slim doesn't say no. Designed to be the ideal travel companion. Thanks to its hook-like design, you can easily hang it on your backpack, so you can take it with you wherever you go. Compact, light and portable, so your favorite music is always available. The magnificent functions of the Earfun Uboom Slim are far from over. With the speaker's stereo pairing function, you can create real 3D stereo sound by the pool, at a house party, in your living room, around a campfire or wherever you want. Don't worry about water ruining the fun because the speaker is IPX7 waterproof. You can pour lemonade on it, splash water on it, soak it in the rain, it doesn't stop listening to music.