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Product information

Pros and cons

According to our Bluetooth speaker expert

  • Thanks to the 360-degree sound, you hear the music clearly from anywhere in the room.
  • The Outdoor Boost allows you to hear powerful sound and you clearly hear the voices in Podcast Mode.
  • You can easily use the speaker at the beach, thanks to the IP67 certification.
  • You can't charge your smartphone to the speaker, because it doesn't have a power bank.

Description

Enjoy a 360-degree sound with the Ultimate Ears WONDERBOOM 4 Black. You hear sound from every side of the speaker, so it doesn't matter where you sit to hear the music well. With the Outdoor Boost button, you can amplify the sound. This way, you can also hear it clearly when you're outdoors with a lot of ambient noise. If you're listening to a podcast, use the Podcast Mode so voices sound more clearly. The speaker has an IP67 certification, which makes it dustproof and water-resistant so you can easily use it by the beach or at the pool. You can listen to your music or podcasts the entire day, thanks to the 14-hour battery life. Connect a second WONDERBOOM 4 speaker for stereo sound.

Included by default

  • USB-C charging cable

Key specs

Maximum battery life

14 hours

Weight

0,42 kg

Wireless speaker size

Mini (0 - 10cm)

Water resistance

Waterproof

IP certification

IP67

Built-in WiFi

Controls via app

Water-resistant

Show all specifications

Recommended combination

Ultimate Ears WONDERBOOM 4 Black
Ultimate Ears WONDERBOOM 4 Black

Current product

Included accessories

Bluetooth speaker

Current product

Ultimate Ears WONDERBOOM 4 Black

Ultimate Ears WONDERBOOM 4 Black

3% discount

on the accessories

130,98

129,79

Delivered tomorrow for free

Reviews

Rating

5 stars

3

4 stars

1

3 stars

0

2 stars

0

1 star

0

Most helpful reviews

Review is 10 out of 10.

Nice thing with good sound

  • Good sound
  • Easy to operate
  • Nothing found yet

The device produces a good sound and is easy to operate. And it looks nice too.

  • Erik

  • 12 March 2025

  • Automatically translated from Dutch

Review is 8,0 out of 10.

Very reliable but not cheap for what it is.

  • Works very smoothly and reliably
  • a bit expensive for what it is.

Works very smoothly and reliably

  • Louis

  • 7 February 2025

  • Automatically translated from Dutch

Review is 10 out of 10.

Top BOX!

  • Quality
  • Price

Very happy with it, price quality top!

  • Jef

  • 6 August 2025

  • Automatically translated from Dutch

Insure your Bluetooth speaker

  • No deductible

  • For almost all accidents

  • More security than standard warranty

  • Coolblue takes care of everything, from taking out an insurance to repairs

How do I insure my Bluetooth speaker?

First, add your Bluetooth speaker to your shopping cart. On the next page, choose the Protection Plan below. You always have a 30-day return window and pay no deductible in case of damage.

  • 2-year Protection Plan

    7,99

    one-time
  • 3-year Protection Plan

    8,99

    one-time
Read more about insurance
Ultimate Ears WONDERBOOM 4 Black

Specifications

Product

Product number

950593

Manufacturer code

984-001894

Brand

Ultimate Ears

Warranty

2 years

Processing of your defect

Via Coolblue

Old product returned for free

Physical properties

Speaker type

Bluetooth speaker, Wireless speaker

Width

9,53 cm

Depth

9,53 cm

Height

10 cm

Wireless speaker size

Mini (0 - 10cm)

Weight

0,42 kg

Color

Black

Integrated light effects

Built-in microphone

Power supply

Maximum battery life

14 hours

Integrated power bank

Water resistance

Water resistance

Waterproof

Waterproofness certification

IP certification

IP certification

IP67

Network and streaming

Bluetooth

Built-in WiFi

NFC

Multi-room audio

Plays from network

Radio

Multi-speaker connectivity technology

UE BOOM

Headphone jack

Sound reproduction

360 degrees, Stereo

Controls

Controls via app

Controlled via buttons on device

Remote control

Durability

Quality mark sustainable product

FSC certified packaging material

Product contributes to sustainability

This product helps you separate trash

Green production features

Partly made of recycled material

This is the one

Charger not included

84,-

Delivered tomorrow for free

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