Ultimate Ears WONDERBOOM 4: full spec sheet and buying guide
The Ultimate Ears WONDERBOOM 4 is a round, 360-degree speaker designed to be dropped, dunked and floated, with a very long wireless range. At the time of writing it holds a 4.4/5 average from more than 2,806 Amazon ratings.
360-degree sound, IP67 and floatable, drop-proof, 14 hours of battery and a 131 ft (40 m) range.
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Sound modes
The WONDERBOOM 4 spreads sound in 360 degrees. Outdoor Boost raises output for open spaces, and the new Podcast Mode makes voices clearer. Press once to pair a second WONDERBOOM 4, and again for true left/right stereo (it isn't compatible with PartyUp).
Durability, range and battery
It's IP67 rated, can be submerged in 1 m of water for 30 minutes and floats. It's also drop-proof and dirt-resistant. Range is up to 131 ft (40 m) and battery life up to 14 hours. It charges over USB-C, but the cable isn't included.
Strengths based on its spec sheet
- 360-degree sound
- IP67, floats and drop-proof
- Long 131 ft Bluetooth range
- Outdoor Boost and Podcast Mode
What to consider before buying
- USB-C charging cable not included
- Not compatible with UE PartyUp
- 14 hours is shorter than some rivals
Want to compare this model with other audio options? Check out our audio buying guide.
Who is it ideal for?
Pool, beach and kayak trips where a floating, drop-proof speaker makes sense.
Who is it NOT the best option for?
If you want a bigger battery and a power bank, the JBL Charge 6 or Soundcore Boom 2 are better; see our audio buying guide.
Frequently asked questions
Does the WONDERBOOM 4 float?
Yes, it's IP67 rated and floatable.
Is a charging cable included?
No, it charges via USB-C but the cable isn't included.
Can I pair two speakers?
Yes, two WONDERBOOM 4 can play together or in true stereo.
Is the Ultimate Ears WONDERBOOM 4 the right fit for you?
See current price on Amazon