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Compact grey cylindrical Bluetooth speaker with fabric wrap and carrying loop

Ultimate Ears Wonderboom 4 984-001879 Grey Portable Speaker

SKU CH-FSK1-BYQ8R

Waterproof, dustproof and floating speaker delivers 360-degree sound with 14-hour battery life and 40-metre Bluetooth range

  • Product nameWonderboom 4
  • Connection optionsBluetooth
  • Speaker categoryOutdoor
  • Input sourcesBluetooth
  • Operating distance40 m
  • Speaker setup2.0
  • Balanced 360-degree sound from a compact 2.0 speaker
  • Outdoor Boost and Podcast Mode tailor audio for open spaces and vocals
  • Up to 14 hours of playtime on a single charge
  • IP67 waterproof, dustproof and floatable for pool or shower use
  • 40-meter Bluetooth range with drop-proof durability and carry loop

Ultimate Ears Wonderboom 4 Grey Speaker

The Ultimate Ears Wonderboom 4 is a compact portable speaker built for outdoor use. It delivers balanced 360-degree sound with an outdoor boost mode and a dedicated podcast EQ. The speaker is IP67 rated for water and dust resistance and floats in water.

Bluetooth Range And Stereo Pairing Limits

The speaker connects via Bluetooth with an operating range of 40 meters. You can pair two Wonderboom 4 units for stereo sound with left and right channels. This double up feature is not compatible with the PartyUP system used on other models.

Check Your Device And Charging Setup

The speaker charges via USB-C cable which is not included in the box. Google Fast Pair allows quick Bluetooth pairing with Android devices running version 6.0 or higher. Verify that your source device supports standard Bluetooth audio streaming.

How it compares

Measured against everything we stock in Bluetooth & Party Speakers, at today’s prices. Recalculated every night.

Price $86.99
Pricier than about 80% of the 862 comparable items (median $39.99).

Specifications

Product
Brand nameUltimate Ears
Model name984-001879
Part number984-001879
Product nameWonderboom 4
Product colorGray
Audio & video
Speaker categoryOutdoor
Speaker setup2.0
AmplificationActive
Frequency response0 GHz
Connectivity
Connection optionsBluetooth
Operating distance40 m
Ports & slots
Input sourcesBluetooth
Size & build
Product dimensions4.0 in × 4.0 in × 8.0 in
In the box
In the boxWonderboom 4 Gray

Questions about this item

Is the Wonderboom 4 sold in different colours or capacities?

The speaker is offered in Gray only; there are no alternative colours or storage capacities to choose from.

What does the 14-hour playtime figure mean for daily use?

A full charge delivers up to 14 hours of continuous audio before the speaker needs recharging via USB-C.

How does the IP67 rating affect real-world durability?

IP67 means the unit survives immersion in 1 m of water for 30 minutes, resists dust completely, and floats if dropped in a pool.

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