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JBL - Boombox 4 portable waterproof speaker - 2025 - Blue

Model: JBLBOOMBOX4BLUAM
SKU: 6644591
Sold byBest Buy

Customers are saying

Customers admire the exceptional sound quality and impressive volume of this speaker, which remains clear even at higher levels. Users also frequently highlight the convenient portability provided by the handle and the reliable battery life. Additionally, the device is praised for its simple connectivity and practical water resistance, making it a versatile choice for various environments.

Generated by AI based on customer reviews.

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, we don’t have to lift a finger—this smart tech analyzes our music in real time and adjusts the sound to give us more power with less distortion, even when we turn it 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

    Two Bass Boost settings to match our vibe

  • 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.

  • 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.

Specifications

  • Speaker Pairing
    Yes
    Wireless
    Yes
    Rechargeable
    Yes
    USB Device Charging
    Yes
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Reviews

Rating 4.9 out of 5 stars with 214 reviews

99% would recommend to a friend
Customers are sayingCustomers admire the exceptional sound quality and impressive volume of this speaker, which remains clear even at higher levels. Users also frequently highlight the convenient portability provided by the handle and the reliable battery life. Additionally, the device is praised for its simple connectivity and practical water resistance, making it a versatile choice for various environments.
This summary was generated by AI based on customer reviews.
  • Sound Quality (150)
  • Battery Life (50)
  • Portability (43)
  • Connectivity (12)
  • Volume (10)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    JBL BOOMBOX4!

    The JBL Boombox 4 has powerful, clear sound with deep bass. It is easy to connect, portable, and the battery lasts a long time. I also love that it is waterproof, making it perfect for indoor and outdoor gatherings. The sound remains clear even at high volume. Excellent quality and definitely worth buying! I am happy my JbL helped me kill 2 birds with one stone ie top notch entertainment a nd its quality music keeps my husband in th e house whenever off duty.

    This review is from JBL - Boombox 4 portable waterproof speaker - 2025 - Black

    Posted by LEAHG

  • Rated 5 out of 5 stars

    KING! CHAMPION!! JBL BOOMBOX 4!!!

    Make no mistake, The JBL Boombox 4 IS the BEST Portable Bluetooth Speaker currently available in any market; Hands-Down. This is a Premium Audio Device, hence the premium in price. Note that EVERY dollar spent is WELL worth the purchase. Superior Sound Quality. - There is no competition, just those who quarrel over second place; All the while, The JBL Boombox 4 is kicking in front doors and making walls fall. You WILL hear, You WILL feel, and You WILL be encompassed in every track that plays through this device; Turning every head that each vibration reaches. Looking to party? The JBL Boombox 4 IS the Party. Love good music? The JBL Boombox 4 brings the studio to you. You control the concert. Superior Battery Quality. - Runs all day, all night, no problem. The JBL Boombox 4 is truly in a class of it's own. It boasts Lithium Batteries that are now interchangeable, so if you ever run out of juice just replace the battery pack. This monster machine is also equipped with Smart Battery Protection, which is a built-in charge management system and protection circuit that stops current from flowing into the battery from the AC Cord when the battery reaches 100%. So, if you're one that leaves your speaker stationed in one place and it's always on the charger, you won't ever have to worry about over-charging or damaging your battery pack. Superior Portability. - You can bring The JBL Boombox 4 virtually anywhere. It's waterproof, dust resistant, and built to last. It's not too fragile that it can't take a few bangs, and it's designed for durability and accidental bumps. One of my personal favorite places to sit and enjoy this sound machine is in my personal vehicle. The JBL Boombox 4 literally could replace the stereo system in your vehicle if you haven't already made any off-market alterations to your vehicles audio system. I have Kenwwod Audio all throughout my vehicle, and the JBL Boombox 4 is the perfect substitute for when I want to sit in my car and jam out to my favorite tracks without draining my battery or gas listening to music through my cars audio system. Just Amazing. Needless to say, The JBL Boombox 4 has indeed been remastered yet again to set the Top Standard for Premium Audio Quality for the new generation of audiophiles. If you don't own this one, you're cutting yourself short. The JBL Boombox 4 has been tested, tried and it IS true. King of Audio! Champion of Bass!! Getchu a JBL Boombox 4!!!

    This review is from JBL - Boombox 4 portable waterproof speaker - 2025 - Black

    Posted by IsaiahR

  • Rated 5 out of 5 stars

    Great sound and easy to use!

    I’m really happy with this JBL speaker. The sound is clear, has great bass, and gets plenty loud without sounding distorted. It’s easy to connect, feels solid, and the battery life has been great so far. Perfect for around the house, outside, or taking on the go. Definitely recommend it.

    This review is from JBL - Boombox 4 portable waterproof speaker - 2025 - Black

    Posted by PaulG

  • Rated 5 out of 5 stars

    JBL Speaker

    I recently purchased a JBL speaker, and overall I’m really impressed with the quality. The sound is loud, clear, and has strong bass without sounding distorted, even at higher volumes. It’s perfect for both indoor use and outdoor settings. One thing I really like is the battery life—it lasts several hours on a single charge, which makes it great for trips, gatherings, or just moving around the house. The Bluetooth connection is also quick and stable, with no annoying dropouts. The design is another plus. It’s durable, easy to carry, and waterproof which gives peace of mind around water. If I had to point out a downside, it would be that some models can be a little pricey, but you definitely get what you pay for in terms of sound and build quality. Overall A reliable, high-quality speaker that delivers great sound and durability. Definitely worth considering if you want a portable speaker that performs well.

    This review is from JBL - Boombox 4 portable waterproof speaker - 2025 - Black

    Posted by TijiwanbaJ

  • Rated 5 out of 5 stars

    Clear mids and highs with Boomy base!

    This is a phenomenal speaker. It completely fills the room and has a massive base. The new firmware update completely gave it a new balanced sound. I am very satisfied with the battery level. I have the JBL easy sing mics that connect to it via type C with no issues. I also have the JBL Boombox 3 and this one is clearly the winner in decibal sound and weight as it is lighter. You won't regret spending the money and this speaker. The JBL Boombox 4 is a masterpiece of portable sound.

    This review is from JBL - Boombox 4 portable waterproof speaker - 2025 - Black

    Posted by Mikec

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We turn it up our way—anywhere. The all-new JBL Boombox 4 is bigger, bolder, and better than ever, with powerful JBL Pro Sound that stays loud and clear, with deep thumping bass. AI Sound Boost analyzes our music in real time and adjusts the sound to give us more power with less distortion, even when we turn it all the way up. It packs two bigger woofers, two tweeters and three passive radiators, so every track hits harder and sounds cleaner. When we want to fine-tune the vibe, we just switch between deep or vibrant punchy Bass Boost settings to match our mood. We gave the classic Boombox design a fresh upgrade—it’s larger but lighter, so we can take it wherever the party goes: the beach, the block, or the backyard. It’s IP68 waterproof and dustproof, so weather’s never a dealbreaker. And, with up to 34 hours of playtime (thanks, Playtime Boost), we’re set for the long haul. With the JBL Boombox 4, we carry the mood and the energy, everywhere we go.

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Big sound goes wherever you do. The JBL Boombox 4 delivers powerful JBL Pro Sound with deeper bass, clearer highs, and reduced distortion, now paired with a weather-resistant hard-shell case for added protection on the move. Built for backyard parties, beach days, and everyday listening, this portable speaker combines long battery life, rugged durability, and bold performance in one easy-to-carry package. Key Features Powerful JBL Pro Sound: Redesigned with two bigger woofers, two tweeters, and three passive radiators for bigger, cleaner sound with deep and punchy bass. AI Sound Boost: Real-time audio analysis helps optimize output for more power and less distortion, even at higher volume levels. Up to 34 hours of playtime: Enjoy up to 28 hours on a single charge, plus up to 6 additional hours with JBL Playtime Boost. Waterproof and dustproof: IP68-rated construction helps protect the speaker against water and dust for reliable outdoor use. Bigger sound, lighter design: Updated construction makes the Boombox 4 easier to carry while delivering an even bigger audio experience. Lossless audio playback via USB-C: Connect a compatible laptop or audio device through the USB-C port for supported lossless playback. Included hard-shell case: Comes with an Expo Gear weather-resistant case featuring a fully zippered design, textured padded interior, and lightweight construction for storage and transport. Made for versatile listening: Ideal for parties, travel, outdoor gatherings, and on-the-go music anywhere you want to set the mood. From poolside afternoons to late-night hangouts, the JBL Boombox 4 is built to keep the music going. With rugged portability, extended playtime, and an included protective case, it’s a ready-to-go speaker setup for wherever the day leads.

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Specs

Questions & Answers

  • Does this speaker support lossless audio playback?

    Yes, this speaker supports lossless audio playback via the USB-C port.

    This question and answer was generated by AI based on customer and product data.
  • Can the battery be replaced on this speaker?

    Yes, the rechargeable battery can be replaced in three simple steps.

    This question and answer was generated by AI based on customer and product data.
  • Does this speaker allow for lossless audio playback?

    Yes, this speaker allows lossless audio playback through the USB-C port.

    This question and answer was generated by AI based on customer and product data.
  • Is the speaker protected from water and dust?

    Yes, the speaker is IP68 waterproof and dustproof.

    This question and answer was generated by AI based on customer and product data.
  • How long can this speaker play music on a single charge?

    This speaker can play music for up to 34 hours on a single charge.

    This question and answer was generated by AI based on customer and product data.
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