Meet the Logitech Ultimate Ears BOOM 4, a portable Bluetooth speaker designed to deliver bold, immersive sound wherever you go. In a striking cobalt blue finish, this wireless speaker blends easy portability with a rugged, everyday-friendly build—perfect for travel, outdoor gatherings, and home listening alike.

• 360-degree sound with rich bass that fills the room and your outdoor space.
• Portable and durable design with a vibrant cobalt blue shell ready for travel, commutes, and adventures.
• Wireless Bluetooth streaming with stable, reliable connections and simple pairing.
• Long-lasting battery for hours of playback on the go.
• Party with purpose by pairing with other UE speakers for bigger, multi-speaker sound.
• Built to handle everyday life with a rugged, splash-resistant design that stands up to spills and weather.

Why choose the BOOM 4? It combines Logitech Ultimate Ears’ iconic sound with a durable, color-rich design that stands out from the crowd, backed by flexible wireless connectivity and easy usability. If you want a portable speaker that sounds great, travels well, and brings vibrant color to your setup, the BOOM 4 is the smart choice.