JBL Boombox 4 Portable Speaker - Black JBLBOOMBOX4BLKAS
JBLBOOMBOX4BLKAS
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Key Features
- Unbeatable JBL Pro Sound with AI Sound Boost
- Up to 34 hours of playtime
- Waterproof and dustproof
- Multi-speaker connection by Auracast™
- Two Bass Boost settings to match our vibe
JBL BOOMBOX 4 Bluetooth SPEAKER - BLACK, JBLBOOMBOX4BLKAS
Most powerful JBL portable waterproof speaker with massive JBL Pro Sound
Key Features:
Unbeatable JBL Pro Sound with AI Sound Boost
We’re talking massive sound with deep and punchy bass. The redesigned JBL Boombox 4 packs in two bigger woofers, two tweeters and three passive radiators, so every track hits harder and sounds cleaner. And with AI Sound Boost, you don’t have to lift a finger—this smart tech analyzes the music in real time and adjusts the sound to give us more power with less distortion, even when it’s turned all the way up.
Up to 34 hours of playtime
Keep the vibe alive from party to party… to party, for up to 28 hours on a single charge. Forgot to charge up for the next one? It’s all good. JBL Playtime Boost adds up to 6 hours of extra popping, locking, sliding, or whatever moves you got left in that bag.
Waterproof and dustproof
The JBL Boombox 4 is IP68 waterproof and dustproof, so it can handle whatever the weather—or our clumsiest friends—throw at it.
Multi-speaker connection by AuracastTM
Wouldn't it be great to share the whole mood with the whole crew? With AuracastTM, effortlessly stereo pair two Boombox 4 speakers for a wider sound stage or connect multiple AuracastTM-enabled JBL speakers to cover more ground with the same playlist.
Two Bass Boost settings to match our vibe
When it comes to bass, we like having options. Fire up the JBL Boombox 4 and you'll get that classic JBL signature bass we all love. Want to take it deeper? Hit the Bass Boost button on the top panel-the JBL Horn mark glows orange, and boom, you're in Deep Bass mode, where those two woofers and three passive radiators go all in. Want something tighter and more energetic? Tap the button once more, the Horn mark turns white, and you're in Punchy Bass mode. Whatever the mood, we've got the bass to match.
Specifications
Global
- EAN: 1200130024382
- Model Number: JBLBOOMBOX4BLKAS
General
- Colour: Black
Features
- Dust Resistant: Yes
- Rechargeable Battery: Yes
- Waterproof: Yes
Size
- Tweeter Size (In): 0.98
Battery
- Battery Type: Rechargeable Li-ion Battery Pack 99.02Wh (equivalent to 21.6V / 4584 mAh)
- Charge Time (Hrs): 3
- Estimated Battery Life (h): 34
- Playback Time (Hrs): 34
- Signal-To-Noise Ratio (Db): 80
Connectivity
- Bluetooth: Yes
- Bluetooth Version: 5.4
- USB: Yes
Bluetooth
- Bluetooth Transmitter Frequency Range: 2.4 GHz - 2.4835 GHz
- Bluetooth Transmitter Power: ≤ 14dBm (EIRP)
- Supported Codecs: AVRCP V1.6
Energy Specification/Power
- Frequency Response (Hz): 37Hz - 20 kHz
Dimensions
- Depth: 212.9mm
- Height: 262.9mm
- Width: 506.4mm
Weight
- Weight (Kg): 5.89
In The Box & Warranty
- Included: 1 x JBL Boombox 4 AC power cord (AC plug and quantity varies by region), 1 x Quick start guide, 1 x Safety sheet, 1 x Warranty card
- Warranty (Years): 1
Manuals
Why Buy?
Thunderous portable sound for any adventure
The JBL Boombox 4 delivers the loudest, clearest sound JBL has ever packed into a portable speaker, making it the ultimate companion for outdoor gatherings, pool parties, and camping trips where you need music that cuts through the noise.
Two redesigned woofers and three passive radiators pump out bass you can feel, while AI Sound Boost technology automatically fine-tunes the audio in real time to keep your music crystal clear even when cranked to maximum volume. Choose between three bass modes to match your playlist - classic JBL sound, deeper bass for electronic music, or punchy bass for rock tracks. The IP68 waterproof and dustproof rating means beach sand, pool splashes, and sudden downpours won't stop the music.
With up to 34 hours of battery life, this speaker outlasts the longest weekend getaways without hunting for power outlets. The sturdy handle and rugged build make it easy to carry from backyard to beach house, while Auracast technology lets you connect multiple speakers to fill larger spaces or create true stereo sound with two Boombox 4 units.
Buy this if...
- You host outdoor gatherings where you need music that projects over conversation and ambient noise
- Your adventures take you near water, sand, or unpredictable weather conditions
- You want multi-day battery life for camping trips or long events without power access
- You love bass-heavy music and want to feel the impact of every beat
- You plan to expand your setup with additional speakers for larger spaces