Ultimate Ears WONDERBOOM 4 Portable Bluetooth Speaker (Cobalt Blue)

Ultraportable Bluetooth® speaker with a surprisingly bigger 360° sound. It’s crisp, bassy, and ready to go with 14 hours of boom. The IP67 rating means it’s waterproof, dustproof, and floats. Take it to the pool, the beach, or even the shower. It’s amazing sound, no matter where you take it.

Key Features

Surprisingly bigger 360-degree sound
The WONDERBOOM 4 portable waterproof Bluetooth speaker features bigger 360-degree sound in a petite package; boosted sound for up to 14 hours of playtime.

Outdoor Boost and Podcast Mode
Engineered for full stereo sound; tap the Outdoor Boost button for outdoor environments; use the new Podcast Mode to make vocals sound rich and clear.

14 Hours of BOOM
With a battery that lasts throughout the day, this waterproof portable speaker booms on with up to 14 hours of playtime, so you can soak up every moment.

Waterproof, dustproof, and floatable
IP67- rated this Bluetooth waterproof speaker can be submerged in 1m of water for 30 min; protected from dust; ideal for the pool, beach, or shower.

Double up for stereo
Pair up two WONDERBOOM 4 portable Bluetooth speakers for even bigger sound; press once to double up; press again for true stereo from both speakers, with left and right channels.

Durable wireless speaker with range
40 metres (131 feet) of range so you’re free to roam; plus it’s dirt-resistant and drop-proof1 with a handy loop so you can take it with you.

Made with recycled plastic
Plastic parts in the WONDERBOOM 4 wireless Bluetooth speaker include a minimum of 31% post-consumer recycled plastic by weight.

(1) Drop-tested from 1.5 m (5 ft)