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Small black cylindrical speaker with attached bungee loop

Logitech

Logitech 984-001876 Wonderboom 4 portable speaker Black

SKU CH-1JKJ-MP34Q MPN 984-001876

Ultra-portable Bluetooth speaker delivers 360° sound, IP67 waterproof and dustproof protection, floats, and runs up to 14 hours on a charge

  • NameULTIMATE EARS WONDERBOOM™ 4 - BLACK
  • ColorBlack
  • Speaker TypeBluetooth Speaker
  • SpecificationAUDIO Maximum sound level: 86 dBC (normal) and 87dBC (outdoo
  • CompatibilityFor audio playback: smartphones, tablets and other devices t
  • ConnectivityUSB
  • 360° sound from two 1.57 in drivers and passive radiators
  • 14 hours playback from rechargeable lithium-ion battery
  • IP67 waterproof dustproof and floats in water
  • 131 ft Bluetooth range lets you roam freely
  • Pair two speakers for stereo left right channels

Portable Bluetooth speaker for outdoor use

The Logitech 984-001876 Wonderboom 4 is a compact wireless speaker built for travel and outdoor listening. Its IP67 rating means it resists dust, survives submersion in one metre of water for 30 minutes and floats. A built-in bungee loop lets you clip it to a pack or shower caddy. It suits anyone who wants music by the pool, at the beach or on a hike without worrying about splashes or dirt.

Sustained playback and sound behaviour

The rechargeable lithium-ion battery delivers up to 14 hours of playtime between micro-USB charges. Two 1.57 in active drivers and two 1.81 x 2.57 in passive radiators produce 360-degree audio that reaches 86 dBC in normal mode and 87 dBC with Outdoor Boost engaged. A dedicated Podcast Mode sharpens vocals for spoken-word content. Bluetooth range extends to 131 feet so the source device can stay inside while the speaker sits outside.

IP67 waterproof and dustproof rating

The single specification that decides suitability is the IP67 certification, which guarantees full dust protection and survival in one metre of water for 30 minutes. Buyers who need a speaker that can be submerged deeper or for longer, or who require a higher maximum sound pressure level than 87 dBC, should look elsewhere.

Highlights

  • 360° sound from two 1.57 in drivers and passive radiators
  • 14 hours playback from rechargeable lithium-ion battery
  • IP67 waterproof dustproof and floats in water
  • 131 ft Bluetooth range lets you roam freely
  • Pair two speakers for stereo left right channels

Specifications

BrandUltimate Ears
NameULTIMATE EARS WONDERBOOM™ 4 - BLACK
Model984-001876
Part Number984-001876
ColorBlack
Speaker TypeBluetooth Speaker
SpecificationAUDIO
Maximum sound level: 86 dBC (normal) and 87dBC (outdoor)
Drivers: two 1.57 in (40 mm) active drivers and two 1.81 x 2.57 in (46.1 x 65.2 mm) passive radiators
WIRELESS CAPABILITIES
131 feet (40 meter) range (Actual Bluetooth range will vary depending on the use, setting, environmental conditions and number of connected devices).
Connect up to two source devices at the same time.
Wirelessly play (stream) to 2 WONDERBOOM 4 speakers from one source
CompatibilityFor audio playback: smartphones, tablets and other devices that support Bluetooth [Advanced Audio Distribution Profile (A2DP)]
ConnectivityUSB
Wireless TechnologyBluetooth
Operating Range131 feet (40 meter) range
BatteryRechargeable lithium-ion battery
Playback Time (up to)up to 14 hours of battery life between micro-USB charges
Features14-HOUR BATTERY
BEATS DUST, SPLASHES, AND FLOATS
OUTDOOR & PODCAST MODE
DimensionsHeight: 4.09 in (104 mm)
Width: 0.31 ft (95.3 mm)
WeightWeight: 14.81 oz (420 g) (speaker only)
Package ContentsULTIMATE EARS WONDERBOOM 4
Bungee (attached to product)
Quick Start Guide ( printed inside the box)
Shipping weight0.54 kg
Package size135 × 119 × 114 mm

Other versions of this model

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Questions about this item

How loud does the Wonderboom 4 get when I leave it playing outdoors all afternoon?

The speaker reaches 87 dBC in outdoor mode and 86 dBC normally, driven by two 1.57 in active drivers and two passive radiators measuring 1.81 x 2.57 in.

What do I need to own before the Wonderboom 4 will play audio?

Any smartphone, tablet or other device that supports Bluetooth A2DP for audio streaming will work; the speaker charges via micro-USB.

If I keep an older Wonderboom speaker, can the new Wonderboom 4 pair with it for stereo?

The Double Up feature pairs two Wonderboom 4 units together for stereo left and right channels; pairing with earlier models is not supported.

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