JBL Boombox 4 - Most powerful JBL portable waterproof speaker with massive JBL Pro Sound - Black
JBL Boombox 4 - Most powerful JBL portable waterproof speaker with massive JBL Pro Sound - Black
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JBL Boombox 4 - Most powerful JBL portable waterproof speaker with massive JBL Pro Sound - Black

JBL Boombox 4 - Most powerful JBL portable waterproof speaker with massive JBL Pro Sound - BlackJBL Boombox 4 Powerful Portable Waterproof Speaker Massive Pro Sound 34 Hours Playtime Multi Speaker Connection Auracast BlackJBL Boombox 4 Powerful Portable Waterproof Speaker Massive Pro Sound 34 Hours Playtime Multi Speaker Connection Auracast SquadJBL Boombox 4 Most powerful JBL Portable Waterproof Speaker with Massive JBL Pro Sound OrangeJBL Boombox 4 Most powerful JBL Portable Waterproof Speaker with Massive JBL Pro Sound BrownJBL Boombox 4 Powerful Portable Waterproof Speaker Massive Pro Sound 34 Hours Playtime Multi Speaker Connection Auracast SquadJBL Boombox 4 Most powerful JBL Portable Waterproof Speaker with Massive JBL Pro Sound WhiteJBL Boombox 4 Most powerful JBL Portable Waterproof Speaker with Massive JBL Pro Sound Purple
Actual ColorBlack

Key item 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 Auracast™
  • Wouldn't it be great to share the whole mood with the whole crew? With Auracast™, effortlessly stereo pair two Boombox 4 speakers for a wider sound stage or connect multiple Auracast™-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.
  • Bigger and louder, but lighter
  • The JBL Boombox 4 sounds bigger and better than ever—but here’s the real win: we redesigned it to be lighter than before. So now it’s way easier to set the tone wherever we go.
  • Lossless audio playback
  • Want to hear every detail? Plug into your laptop or other audio device using the Boombox 4’s USB-C port* to enjoy lossless audio playback. It's perfect for real audio fans who want more from their music. Just make sure your source offers lossless audio. *Requires compatible lossless audio content from supported apps or services.
  • Recycled plastic and fabric, plus FSC certified paper packaging
  • The JBL Boombox 4 incorporates post-consumer recycled plastic and recycled fabric for the speaker grille. It's also packaged in FSC-certified paper printed with soy ink.
  • Replaceable battery**
  • Want even more life out of your speaker? Replace the rechargeable battery in three simple steps, and your JBL Boombox 4 will be back at full power. **Replaceable battery sold separately
Current price is Now $429.95
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was $549.95
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4.7 out of 5 stars
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98 ratings23 reviews
How item rating is calculated
  1. 5 stars88% (86)
  2. 4 stars4% (4)
  3. 3 stars5% (5)
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Showing 1-3 of 23 reviews

May 22, 2026
anonymous
Item details
Color: Black
Sold and shipped byOneCall (Authorized Dealer)
5 out of 5 stars review

Verified Purchase

Blasted full volume in all kinds of weather for hours on end almost everyday for months, survived a car crash where it flew out the window at highway speeds, and kept going, still delivering exceptional audio. You can hear the thing while you're pressure washing

Helpful?74FVT62GSQ2R17896151483
Jul 1, 2026
Julio
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

I love it! Is like having an expensive sport car, you gotta be easy on the accelerator. Same way here, you gotta be easy on the volume or your neighbors will not hesitate on calling the police. by the way, I'm a Sonos customer.

Helpful?74FVT62GSQ2R17896151483
Jul 9, 2026
madeline
Item details
Color: Black
Sold and shipped byOneCall (Authorized Dealer)
5 out of 5 stars review

Verified Purchase

I love it, the sound is fabulous. I used it when I was at the beach and I didn't have to listen to other peoples music. It drowned their music 🎶 🎵 out LOL

Helpful?74FVT62GSQ2R17896151483