Take your music anywhere with the Ultimate Ears Wonderboom 4 Portable Bluetooth Speaker, built for big sound in a compact, adventure-ready design. Created by Ultimate Ears, this speaker delivers powerful 360° audio with deep bass—far beyond what you’d expect from its size.

Designed to go wherever you do, the Wonderboom 4 is fully waterproof, dustproof, and even floats thanks to its IP67 rating—making it perfect for the pool, beach, or outdoor adventures. With up to 14 hours of battery life, you can keep the music going all day without interruption.

Seamlessly connect via Bluetooth for quick, wireless playback, and pair it with other Ultimate Ears speakers like Boom, Megaboom, Epicboom, or Hyperboom for an even bigger, more immersive sound experience.

Compact, durable, and seriously fun—the Wonderboom 4 is your perfect grab-and-go speaker.