Ultimate Ears Wonderboom 2

Test 01/2020

  • Ultimate Ears Wonderboom 2 - front
  • Ultimate Ears Wonderboom 2 - detail
  • Ultimate Ears Wonderboom 2 - magic
  • Ultimate Ears Wonderboom 2 - outdoor
  • Ultimate Ears Wonderboom 2 - swimming
Test seal: Ultimate Ears Wonderboom 2, Rating 8.5

last modified: 28.02.2020, 14:01

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All rating criteria details:

Sound quality 40%
Range of functions 20%
Battery Performance 20%
Handling 10%
Volume 5%
Design 5%
Tested by: Jonas



The Wonderboom 2 from Ultimate Ears scores especially with its compactness and a high function range. The speaker is protected against dust, heavy jets of water and temporary submersion. Additionally, the speaker is floatable. With the help of the Magic button, you can control the music without holding the phone in your hand. You can also connect the speaker to other devices to create a spatial sound impression. To further increase the volume, you can activate the outdoor mode. However, the sound quality decreases dramatically when the volume is increased.


  • Waterproof
  • Floatable
  • Handling
  • Connection with further device possible
  • Compactness


  • Sound quality
  • Battery life
  • No AUX connection

360° View

Compact loudspeaker with a wide range of functions.

General information

The Wonderboom 2 from Ultimate Ears comes in an illustrated and appealing package that is easy to open. The manual is available in German and several other languages, illustrated and clearly understandable. The loudspeaker belongs to the IP67 protection class. This means that the device is protected against heavy water jets, dust, and even temporary submersion. If the Bluetooth speaker should submerge, you don't have to worry because it is floatable and always finds its way back to the water surface.

Wonderboom 2
A special feature is that the device is floatable.


To activate the speaker, press the "Power Button" for about 1 second. To connect the Wonderboom 2 to another device, you can connect via Bluetooth by pressing and holding the Bluetooth button for about 2 seconds. Because of the 'Plug and Play' function, the connection is easy and uncomplicated.


Wonderboom 2
The magic button allows you to control the music playback.

The speaker has an outdoor mode, which is designed to provide a louder and more detailed sound. In the end, the outdoor mode is nothing more than a preset equalizer integrated into the device, which is activated by pressing a button on the bottom of the device. With the middle button on the top, you can either pause, resume or double-click to skip a song. An ingenious feature is the ability to wirelessly connect the Wonderboom 2 to another copy to create a spatial sound impression and expand the sound propagation. Additionally, there is a hanging loop on the top side.

Wonderboom 2
The outdoor mode is activated on the underside of the device.

Sound quality

The quality of the sound could not convince me. For its size, the Wonderboom 2 makes a lot of noise. But that's exactly the point: the quality of the sound decreases considerably with increasing volume. The bass is very pronounced, drowning out the highs and lows, which are noticeably unbalanced. The manufacturer does not offer an application with which the ratio of treble, midrange and bass can be individually adjusted. The 360° sound promises an even sound coverage if the device is positioned in the middle of the room. I cannot confirm this. Once again, the sound quality at low volume is praiseworthy; here, the sound ratio appears well balanced and coordinated. Everything played above the medium volume level is rather not intended for sensitive ears.


The loudspeaker lies comfortably in the hand and can be operated intuitively.

Battery life

The battery life is approximately 10 hours. Depending on the volume played, the battery life may vary. The charging time via micro-USB takes just under 3 hours.

We have evaluated almost 1,182 reviews on the Internet. In summary, we can say that around 93 percent of buyers are satisfied (4 stars) or even very satisfied (5 stars). Partially (2 stars) or completely dissatisfied are about 4 percent of users. The average score at the time of the evaluation was 4.7 out of 5 stars.

Summary: 93% positive and 4% negative ratings

The following points were positively noted:

  • Waterproof
  • Connection
  • Compactness

Negative comments were made on the following points:

  • Bass overmodulated
Manufacturer Ultimate Ears
EAN 5099206084186
Accessories Micro-USB cable with power supply unit
Party mode
App included -
Bluetooth version 4.2
Power supply connection Micro-USB
Length of the power cable 110 cm
Battery life 10 hours
Weight 424 g
Depth 9.5 cm
Height 10.4 cm
Width 9.5 cm
Manual language GER, EN, FR
Quality of instructions Excellent
Packaging Printed with information and image
Quality impression Good
Scope of delivery Operating instructions, Micro-USB cable with power supply
Music control without smartphone
Wireless charging -
Sound quality
Range of functions
Battery Performance

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Overview: Bluetooth Speaker

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Does the speaker have NFC?
How good is the Bluetooth connection to Apple devices?
The connection to various Apple devices works fine.


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