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Ultimate Ears BOOM 4 Stereo portable speaker Blue

Ultimate Ears BOOM 4, 46.1 x 65.2 mm, 4 cm, 85 dB, Wireless, A2DP, 45 m

Best offerPrice trend

£137.99

-4%
Price trend
Detailed analysis
Price history of Ultimate Ears BOOM 4 Stereo portable speaker Blue over the last 3 months
DatePrice
24 March 2026£143.99
4 May 2026£137.99
12 May 2026£141.43
13 May 2026£141.99
18 May 2026£137.99

Compare Ultimate Ears BOOM 4 Stereo portable speaker Blue prices UK

*Date of last price update

User Notice: We regularly reference new offers to provide you with the widest selection. However, the displayed results do not reflect all available offers on the market. By default, offers are sorted by price, with the lowest price appearing first.

Product Information

BOOM 4
Get sound that’s big, bold, and balanced, all in one compact, portable Bluetooth® speaker. Equipped with one-touch music control, a drop-proof, waterproof, dust-proof IP67 rating, and stunning high performance fabric, it’s the ultimate go-anywhere speaker that’s more bold and bassy than ever.
LOUD AND CLEAR
BOOM 4 packs a sonic punch for its size. Featuring Ultimate Ears unique audio processing, it produces clear and balanced audio faithful to the music you love, and at every volume level.
SPATIAL 360° SOUND
With the iconic cylindrical design, we pioneered to deliver immersive, stereophonic audio that radiates evenly in all directions.
DEEP ACCURATE BASS
BOOM 4 gives your music a deep, rich bass. Enjoy the punchy bass without exaggeration or distortion.
SIGNATURE + 4 PRE-SET EQ MODES
Enjoy the Ultimate Ears Signature sound and several EQ modes like Bass Boost, Cramped Space, Deep Relaxation, and Podcast/Vocal from UE | BOOM App. Didn’t find your favorite? Customize it yourself.

BOOM 4 was born to hit the road. From rooftop-raging to mountaintop-shredding, BOOM 4's got your back. It’s IP67 rated, waterproof, floatable and drop-proof. Take it anywhere. It's more powerful than you expect.

BOOM 4 gives you 15 hours of sonic power on a single charge.This portable speaker has long battery life that keeps the party going.

Use PartyUp on the UE | BOOM App to pair 1, 2 , 3... and over 150 speakers and create the ultimate sound experience. You can combine multiple BOOM 4, MEGABOOM 4, EVERBOOM, EPICBOOM and HYPERBOOM speakers or even pair them with previous generation BOOM speakers. Build a wall of sound? No problem.

One tap to dive in. Play, pause, and skip tracks directly from your BOOM 4. Set up one-touch playlists on your favorite streaming platforms like Spotify®, Amazon Music on Android,and Apple Music for iOS by UE | BOOM App.

Plastic parts in BOOM 4 include a minimum of 52% certified post-consumer recycled plastic by weight. It’s also designed for recycling.

Portable & Party Speakers Ultimate Ears

Product

Name
Ultimate Ears BOOM 4 Stereo portable speaker Blue

Weight & dimensions

Weight
620 g
Width
73 mm
Depth
73 mm
Height
184 mm

Loudspeakers

Number of speakers
1
Number of drivers
4
Number of passive radiators
2
Passive radiator size (W x D)
46.1 x 65.2 mm
Driver diameter
4 cm

Audio

Sound pressure level (max)
85 dB

Ports & interfaces

Connectivity technology
Wireless
Wi-Fi
No
Bluetooth
Yes
3.5 mm connector
No
AUX in
No
Bluetooth profiles
A2DP
Bluetooth range
45 m
USB connectivity
Yes
USB connector type
USB Type-C

Power

Battery type
Built-in battery
Battery technology
Lithium-Ion (Li-Ion)
Battery life (max)
15 h

Packaging content

Cables included
USB Type-C
Quick start guide
Yes

Design

Product type
Stereo portable speaker
Product colour
Blue
Product design
Cylinder
Volume control
Buttons
On/off switch
Yes
Protection features
Dustproof, Splash proof, Waterproof
Hook
Yes
International Protection (IP) code
IP67
LED indicators
Bluetooth

Performance

Recommended usage
Universal
Equalizer
Yes
Bass adjustment
Yes
Remotely operated
Yes

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