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Cylindrical red Bluetooth speaker with attached bungee loop

Logitech

Logitech 984-002004 Ultimate Ears BOOM 4 portable speaker Raspberry Red

SKU CH-WWR2-DEP9A MPN 984-002004

A waterproof, floating Bluetooth speaker delivering 360-degree sound with deep bass and up to 15 hours of battery life

  • Product nameUltimate Ears BOOM 4 Wireless Bluetooth® Speaker (Red)
  • Connection optionsUSB
  • Speaker categoryBluetooth Speaker
  • Spec summaryPOWER Rechargeable lithium-ion battery for up to 15 h of pla
  • Wireless typeBluetooth
  • Operating distance147 ft (45 meter) range
  • 360-degree sound with deep bass for immersive listening
  • IPX7 waterproof and floats for worry-free poolside use
  • 15-hour battery life keeps music playing all day
  • 45-metre Bluetooth range lets you roam freely
  • 52% post-consumer recycled plastic reduces environmental impact

Ready for the pool

The Ultimate Ears BOOM 4 is a portable Bluetooth speaker built for outdoor use. Its IPX7 rating means it can be submerged in up to 3.3 feet of water for 30 minutes and it floats. The Raspberry Red model delivers 360-degree sound with deep bass, weighing 620 g and measuring 184 mm by 73 mm.

Fits in a bag, pairs with a phone

The speaker connects wirelessly to smartphones and tablets using Bluetooth with a 45 meter range. A rechargeable lithium-ion battery provides up to 15 hours of play time at default volume. It charges via USB and includes an attached bungee for hanging. The Ultimate Ears app adds PartyUp for linking compatible speakers and one-touch playlist control for supported streaming services.

Holds output for the full session

At 30% volume the battery lasts the rated 15 hours before needing a recharge. The enclosure is drop-proof up to 1.5 meters, so physical shocks do not interrupt playback. Plastic parts contain a minimum of 52% post-consumer recycled content by weight. Maximum sound level reaches 85 dBC, maintaining balanced audio until the battery depletes.

How it compares

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

Price $110.99
Pricier than about 86% of the 862 comparable items (median $39.99).

Specifications

Product
Brand nameUltimate Ears
Model name984-002004
Part number984-002004
Product nameUltimate Ears BOOM 4 Wireless Bluetooth® Speaker (Red)
Product colorRed
Audio & video
Speaker categoryBluetooth Speaker
Connectivity
Connection optionsUSB
Wireless typeBluetooth
Operating distance147 ft (45 meter) range
Power
Battery packRechargeable lithium-ion battery
Size & build
Product dimensionsHeight: 7.3 in (184 mm)
Width: 2.9 in (73 mm)
Product weight21.87 oz (620 g) (speaker only)
Shipping weight0.80 kg
Package size200 × 123 × 103 mm
Compatibility
Compatible withFor audio playback: smartphones, tablets and other devices that support Bluetooth [Advanced Audio Distribution Profile (A2DP)]
In the box
In the boxULTIMATE EARS BOOM 4
Bungee (attached to product)
Quick Start Guide (printed inside the box)
More details
Playback time (up to)up to 15 h of play time

Other versions of this model

3 more in the same range

Questions about this item

How many hours of playback can I expect from the rechargeable lithium-ion battery before it needs recharging?

The rechargeable lithium-ion battery provides up to 15 hours of play time at default volume (30%), though actual battery life varies with use, settings and environmental conditions.

What is the maximum sound level the speaker produces and how much does the unit weigh during all-day use?

The speaker reaches a maximum sound level of 85 dBC and weighs 21.87 oz (620 g), so heat and noise remain consistent with its portable design during extended playback.

Which Bluetooth profile must my phone or tablet support to stream audio to this speaker?

Your device needs to support Bluetooth Advanced Audio Distribution Profile (A2DP) for audio playback with the BOOM 4.

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