Best daily deals

All products featured are independently chosen by us. However, SoundGuys may receive a commission on orders placed through its retail links. See our ethics statement.

Ultimate Ears WONDERBOOM 21 / 9
Ultimate Ears

Ultimate Ears WONDERBOOM 2

UE’s cannonball speaker is perfect for the pool.

Current price · Amazon US
$149.98
Check Price on Amazon

Price last checked 1d ago

Value for Money & durability / build quality
8/ 10
8
0.010.0

A 8 puts its value for money in the top third of bluetooth speakers we've measured.

Measured on 56 of the 167 we've cataloged.

9.2/ 10
9.2
0.010.0

A 9.2 puts its durability / build quality in the top 10% of bluetooth speakers we've measured.

Measured on 53 of the 167 we've cataloged.

Key specs

Battery Life Wireless
13 hBelow average
13 h
5 h30 h

below average for bluetooth speakers — based on 137 of 167 we've cataloged.

IP Rating
IP67Most common
IP6740%IPX730%IPX49%IP686%

IP67 is the most common — on 40% of the 128 bluetooth speakers we've cataloged (of 167).

Bluetooth Version
5.0
5.334%5.021%5.410%5.210%

5.0 appears on 21% of the 135 bluetooth speakers we've cataloged (of 167).

Is Portable
YesMost common
True92%False8%

True is the most common — on 92% of the 160 bluetooth speakers we've cataloged (of 167).

Battery

Battery Life Wireless
13 h
Charging Method
Micro-USB

Build

IP Rating
IP67
Floating Design
Yes

Connectivity

Bluetooth Version
5.0
Bluetooth Range
30 m
Stereo Pairing
Yes

Design

Is Portable
Yes
Color Options
Black, blue, grey, pink, red
Dimensions Depth
104 mm
Dimensions Height
95.3 mm
Dimensions Width
93.47 mm
Carry Strap
Yes
Power Source
Rechargeable battery
Weight
420 g

Features

Speakerphone
No

Sound

Amplification
Active (powered)
Frequency Response
75-20000 Hz
Frequency Response High Hz
20000 Hz
Frequency Response Low Hz
75 Hz

SoundGuys review

Read the full review ›
SOUNDGUYS rating
8.1/ 10
Recommended
Lil Katz
Reviewed byLil KatzContributorReviewed May 2022
Battery life7.5
Connectivity5.0
Design7.5
Portability7.8
Value8.0
The verdict

If you're looking for a speaker to accompany you on every summer adventure, the UE Wonderboom 2 is a great option. The lack of an integrated microphone is annoying since it means you can't access a voice assistant, but it's a small price to pay for a speaker that floats.

✓What we like
✓IP67 dust- and water-resistant
✓Connect two devices simultaneously
✓Pair to another Wonderboom 2 for stereo sound
✓Two-year warranty
✓Portable and floats
✕What could be better
✕No microphone
✕Distortion increases with volume
✕microUSB charging
Read the full SoundGuys review →

More Bluetooth speakers

See our top picks ›