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JBL

JBL PartyBox 520 Portable Party Speaker with AI Sound Boost - Black | Up To 15 Hours Playtime, Replaceable Battery, Auracast Stereo Linking, Telescopic Handle And Wheels, Mic And Guitar Inputs

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jul 29
Order within 9 hours and 49 minutes
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Style: Speaker


Color: Black


Features

  • AI-BOOSTED SOUND: 400W of deep bass and bold highsthis Bluetooth party speaker uses AI Sound Boost to analyze your music in real time, delivering maximum acoustic performance with less distortion. Loud, clean, and built to move crowds.
  • MUSIC-SYNCED LIGHT SHOW: Is it even a party without lights? Glowing patterns and strobe effects pulse to every beat, turning your backyard or tailgate into a full-on eventno cover charge required.
  • LONG BATTERY LIFE: Keep the energy going with up to 15 hours of playtime on a single chargeor swap the replaceable battery to keep the music running. This rechargeable speaker outlasts the night.*Additional battery sold separately.
  • MIC & AUX INPUT: Plug in a mic for karaoke or connect any device via aux inputthis portable party speaker handles live talent and playlists without missing a beat. Throw parties instead.
  • BUILT TO ROLL: A telescopic handle and wide sturdy wheels make this portable speaker easy to move anywherebackyard, poolside, or wherever the pin drops. Splash-proof build means party fouls won't stop the show.

Description

Got big plans that call for big sound? The JBL PartyBox 520 is a portable party speaker built to match your energy—400 watts of bold, chest-thumping audio powered by AI Sound Boost, which analyzes your music in real time to keep things loud and clear without the distortion. Two 7.5-inch woofers and dome tweeters bring the kind of deep bass that makes every song feel like a live performance. Rolling up to the backyard or a tailgate? Extended telescopic handle and wide sturdy wheels make moving this outdoor speaker surprisingly smooth. Once you're set up, the music-synced light show takes over—glowing patterns and strobe effects that turn any space into something worth showing up for. And from wherever you're standing, the JBL PartyBox app puts full control of the music, EQ, and lightshow right in your hand. Up to 15 hours of playtime on a single charge keeps the energy going deep into the night, and if that's still not enough, the replaceable battery means the party doesn't have to stop for a recharge. Want to go even bigger? Pair two PartyBox 520s via Auracast for true stereo, or link additional Auracast- enabled speakers and let the sound grow with the crowd. Additional replaceable battery sold separately. With the JBL PartyBox 520, we carry the mood and the energy—everywhere we go.

Brand: JBL


Speaker Maximum Output Power: 400 watts


Frequency Response: 20000 hertz


Connectivity Technology: Auxiliary, Bluetooth, USB, XLR


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Floor Standing


Enclosure Material: Metal, Plastic


Speaker Type: Portable Speaker


Additional Features: Bass Boost, Portable, Stereo Pairing, USB Port


Antenna Location: For Guitars, For Music Players, For Smartphones or Tablets


Color: Black


Is Waterproof: False


Warranty Type: Limited


Control Method: App


Speaker Size: 7.5 inches


Woofer Diameter: 7.5 inches


Tweeter Diameter: 1 inches


Water Resistance Level: Water Resistant


Specific Uses For Product: Party


Battery Average Life: 15 hours


Controller Type: Button


Unit Count: 1 Count


Item Dimensions D x W x H: 14.53"D x 16.34"W x 30.28"H


Item Weight: 56.2 pounds


Compatible Devices: Karaoke Machine, Laptop, Projector, Smartphone, Tablet


Power Source: Battery Powered


Number of Batteries: 1 Lithium Ion batteries required.


Audio Driver Type: Dynamic Driver


Brand: JBL


Model Number: JBLPARTYBOX520AM


Model Name: Partybox 520


Built-In Media: 1 x JBL PartyBox 520, 1 x Safety Instruction and Warranty Card, Power Cable, Quick Start Guide


Warranty Description: 1 Year Manufacturer


Number of Items: 1


UPC: 050036408615


Global Trade Identification Number:


Manufacturer: JBL


Age Range Description: Adult,Kid


Speaker Maximum Output Power: 400 watts


Frequency Response: 20000 hertz


Number of Audio Channels: 2


Signal-to-Noise Ratio: 80 db


Connectivity Technology: Auxiliary, Bluetooth, USB, XLR


Wireless Technology: Bluetooth


Connectivity Protocol: Bluetooth, Auxiliary, USB, XLR


Battery Capacity: 99.02 milliamp_hours


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great quality, great sound and very deep bass with crisp vocals. Big & Heavy
Style: Speaker Color: Black
To start with, I am a bit biased with JBL. No, I don't work for them, nor do I get compensated, but I know great sound when I hear it and JBL has not let me down. My Toyota Tacoma has a JBL system in it from the factory and it's really good sound. I then tried the JBL Extreme 4 and was very impressed with such great sound from a small speaker. Next came the Partybox 320 and man, i was really blown away by crisp highs and chest pounding bass. I then got a Boombox 4 and it too had great highs and bass you could truly feel and this was a small boombox. Now, the Partybox 520 I really did not plan on getting since i had the 320 and was quite happy with that sound. But Amazon had a sale for just a few hours on this 520 and I had to get it. Any regrets? No way. The 320 sounded awesome, but his 520 blows the 320 away. How? Again, the sound quality is even clearer for the highs and mids (though no mid speaker) and the bass.... the bass is heart pounding. I know people use the terms 'heart pounding' and 'bass you can feel' quite often. With the 320 0r 520, you truly do feel it in your chest. The 520 is just louder, more powerful and much bigger than the 320. The 320 you can grip well to lift and carry it when needed. it is heavy, but manageable. The 520 is a beast, literally. It is much bigger and heavier than the 320. To lift it, it it more cumbersome and not really made to lift and carry. It is designed to roll and it does very well rolling. Easy to maneuver and to set up. But when you need to lift it in those instances, they do not make it real easy, but it is worth it in the end. One thing I have learned about JBL is that you can crank the music full and you'll not hurt the speakers. Can't say that about too many other companies, if at all. When you crank this to about 3/4, it is beyond loud. Not sure where SPL is, but it is high. Your chest is pounding from the bass, literally and your ears almost hurt if you are are even semi close to this unit. The bass on this is not mushy, nor does it drown out the mids and highs, but enhances them. The bass is proper here as you truly feel it. I almost like the bass better on the 520 than my pro QSC KS212C's and the clarity is spot on in comparison to my K12.2's, which all could sound off if not adjusted right. The 520 needs no adjustment. You really feel and hear the spectrum of sound from digital music of today. Myself, I like the 70's and 80's overall and though the frequency response from music I like is not like today's, this JBL Partybox 520 makes it sound great. The controls are easy to learn and very straight forward. it connects to my phone with no issues and stays connected. In fact, when i turn on any JBL speaker to my phone, once the initial set up is done, they just automatically all connect now. The Auracast is also a great feature as you can connect other Auracast speakers and all the JBL's connect seamlessly for me. The UDB C I also use for this 520 speaker, but it will only play songs in alphabetical order, though you can skip a track by physically going to the speaker. No control from phone can be done. The lights are really good and when I pair with the JBL light sticks, they all go in unison and very cool effects. On the 520 itself, it is good, but to party as they advertise with the lights, well, it's a bit of a stretch, but they are good. I own a DJ business, so I have party lights of all kinds and these do not come close, sorry, but they are fun look at it and it is mesmerizing. I cannot say enough about this 520 speaker and JBL. Very well worth the money, though it is expensive, I got mine new for under $600 on Amazon, so I am extremely happy. ... show more
Reviewed in the United States on June 20, 2026 by Gil L
    • Very good bass!!
Style: Speaker Color: Black
After using the JBL PartyBox 520 for a few months, I can honestly say it has been one of my favorite purchases. The sound quality is excellent, with strong bass, clear vocals, and enough volume to easily fill a room, backyard, or garage without losing clarity. One thing that really stood out to me over time is that it still sounds clean even when the volume is turned up high, which is something a lot of speakers struggle with. The bass has a lot of punch and makes music sound fun, but it does not completely overpower everything else. Vocals and instrumentals still come through clearly, which makes it good for all kinds of music, not just bass-heavy songs. I have used it for casual listening, small get-togethers, and just playing music around the house, and it has done great in every situation. Over the past few months, the Bluetooth connection has been reliable and easy to use. Pairing is quick, and I have not had any annoying connection issues. The speaker itself also feels well-built and durable, not cheap or flimsy. The lighting effects are a nice bonus too. They add a fun party vibe without feeling overdone. Another thing I appreciate after owning it for a while is how simple it is to use overall. The controls are straightforward, and it feels like a product that was made to be enjoyed without having to mess with complicated settings. For anyone looking for a powerful speaker with great sound, strong bass, and solid build quality, I would definitely recommend the JBL PartyBox 520. It has been worth the money for me and easily earns 5 stars. ... show more
Reviewed in the United States on March 29, 2026 by Juan Sanchez
    • Upgraded from the 310, and WOW!
Style: Speaker Color: Black
Like so many have said before me, the 310 lead to the purchase of the 520. At the time the 310 was the biggest speaker you could buy from JBL that had a battery making it truly portable. New for 2025 the 520 is the next step in the Partybox lineup. Still battery powered and portable, and of course heavier than the 310. The 520 makes almost twice the power @ 400W RMS, with the 310 @ 240W RMS. The 520 does not leave me wanting more. I also chose the 520 because it fits under my desk, the 710/720 are at or over 40" so they are not as compact as the 520. As for the sound, at very-low-to-low volumes the sound is similar to that of the 310, but the right ear can tell there's something more special with the 520. It's when you start turning up the volume does the 520 begin to outclass the 310. Also keep in mind, no matter which you own, 310/320/520, they must be plugged into the wall to get that max power (RMS). Those using the JBL app will find familiarity but some unique features for the 520. It adds some new sound profiles and a 7-band customizable EQ. The 310 had a very basic EQ. I tinkered with the EQ and found a personal setting I love and this thing absolutely rips! The 310 will play your content loud, but the bass will fall off as you near the top in terms of volume. I don't find that the case with the 520 at all, as the volume goes up the bass stays right there. I was bummed when I read the tweeters on the 520 were smaller than that on the 310 but after listening to them side-by-side, you'd never know it, and it's a non-issue at this point. I'm listening to it as I write this review and it brings a huge smile to my face. So far (in any JBL portable speaker review) the battery life is extremely good, lasting me all week, playing my content 11 hours a day. I leave all the lights/visuals off. The added bonus is the battery is removable and you can buy extras and swap them out as needed, if needed. As for value, that's tough one, this speaker is not cheap and comes dangerously close to the 700-series in terms of price but not in power. The 520 and 720 are priced too close for their power differences, if space is of no concern, consider the 720. Thankfully I got this during the Black Friday deal and that lessened the financial blow. If I had to do it again at full price I might have had to think of that a bit more. ... show more
Reviewed in the United States on November 25, 2025 by 2wings4icarus
    • Prepare to meet the police
Style: Speaker Color: Black
This thing is legit, I was worried if this would be powerful enough and whether or not to go with the 720 or 520. I grabbed the 520 on sale at $750 and I will say it is worth the cost. Highs, mids and bass comes through nicely without major overlap, it has a built in bass boost feature and you can also adjust treble and bass individually, which is nice. The app is easy to use and I have no issues with it, you can even sync multiple JBL speakers at the same time using it. Speaking of that, I just may grab another! Note: prepare to meet your local cops when the entire neighborhood calls the police on you. :) ... show more
Reviewed in the United States on March 29, 2026 by Joe Blow
    • Happy with this purchase
Style: Speaker Color: Black
Good quality
Reviewed in the United States on June 25, 2026 by Amazon Customer
    • Best speaker so far!
Style: Speaker Color: Black
I own other JBL speakers and products so I researched the 710 and 720 models before making a purchase. I didn’t want to buy something and then feel like I needed more. The 520 model meets my needs perfectly. It’s loud, clear, and easy to connect to other speakers. The app also makes it convenient! The charge holds quite a while as well. ... show more
Reviewed in the United States on February 24, 2026 by AS2 (AW) Shmickatelly
    • What you should know!!
Style: Speaker Color: Black
Review Image by chester lewandowski
Extremely great sound and clarity. Definitely has the power.
Reviewed in the United States on June 11, 2026 by chester lewandowski
    • Jbl 520 partybox
Style: Speaker Color: Black
I own a 310 Partybox and now the new 520 it is a great speaker good bass and sound. It is a bit louder then the 310 however it does need to be up in the higher volume levels to get the good sound. At lower volume the bass is a little flat sounding even on the high setting. I would say at 50% volume the sound is very good and again at 75% volume. The price for the 520 is steep so it only makes sense to buy it if size is a concern? Otherwise you can get the monster JBL 720 for less when it is on sale and have 800 watts vs 400 from the 520. ... show more
Reviewed in the United States on October 25, 2025 by John i.

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