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Key Features
- Ultimate Sound
- Powered for Adventure
- A Bluetooth Waterproof Speaker Made for the Outdoors
- Party Up
- Magic Button
Logitech Ultimate Ears Boom 4 Portable Bluetooth Speaker - Blue, 984-001979

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.
Key features:
Ultimate Sound
The BOOM 4 portable waterproof Bluetooth speaker delivers rich, 360- degree sound and deep, accurate bass, all carefully balanced so you can hear every note.
360° CRYSTAL CLEAR SOUND + 15 HOURS OF BOOM
Grab the super-portable wireless speaker that’s built for adventure. Seriously waterproof with balanced 360° sound, deep bass, and one-touch music controls. it’s the ultimate go-anywhere speaker.
4 PRESET EQ MODES + CUSTOMISABLE EQ
Experience 4 different EQ modes (BASS BOOST, CRAMPED SPACES, DEEP RELAXATION, PODCAST/VOCAL) by UE | BOOM App.
PARTY UP WITH THE WHOLE FAMILY
Pair the BOOM 4 with MEGABOOM, EVERBOOM, EPICBOOM and HYPERBOOM for more massive sound.
HIT THE MAGIC BUTTON FOR YOUR PLAYLIST
Long press to access your playlist. Set up one-touch playlists on streaming platforms like Spotify, Amazon Music and Apple Music for iOS.
Specifications
Description
- Search Snippet: The Ultimate Ears Boom 4 984-001979 delivers 360-degree sound with 15-hour battery life and IP67 waterproof rating.
Global
- EAN: 0097855197818
- Model Number: 984-001979
General
- Colour: Blue
Features
- Android/Ios Compatible: Yes
- Built-In Speakerphone: Yes
- Dust Resistant: Yes
- Rechargeable Battery: Yes
- Waterproof: Yes
Battery
- Battery Type: lithium-ion battery
- Estimated Battery Life (h): 15
- Playback Time (Hrs): 15
Connectivity
- Bluetooth: Yes
- NFC: Yes
Dimensions
- Depth: 73mm
- Height: 184mm
- Width: 73mm
Weight
- Weight (Kg): 0.62
In The Box & Warranty
- Included: ULTIMATE EARS BOOM 4, USB-C Cable, Quick Start Guide (Printed in paper
- Warranty (Years): 2
Why Buy?
Rich 360-degree sound that travels anywhere
Turn any space into your personal music venue with sound that fills every corner evenly. The balanced audio delivers crisp highs and deep bass that makes every song sound fuller and more engaging than tiny speakers ever could.
Your music keeps flowing for 15 hours straight, so weekend camping trips, all-day beach sessions, or backyard parties never lose their soundtrack. The waterproof and drop-proof build means sand, splashes, and tumbles won't silence your speaker. One-touch controls let you play, pause, and skip tracks right from the speaker, so your phone stays safely tucked away. The compact size slips easily into bags while still delivering room-filling volume that brings people together.
The Magic Button gives you instant access to your favourite playlists from Spotify, Apple Music, or Amazon Music with a simple press. Four preset sound modes adapt the audio perfectly whether you're listening to podcasts in a small room or pumping up the bass for outdoor parties. The bold blue finish looks great in any setting, and when you want even bigger sound, pair multiple speakers together for true stereo separation.
Buy this if…
- You want music that follows you from indoors to poolside to camping
- You need all-day battery life without constantly checking charge levels
- You host gatherings and want impressive sound that gets everyone moving
- You're rough on gear and need something that handles real-world knocks
- You want instant music control without fumbling for your phone




