SKU: 28700596071

JBL PartyBox 520 Portable Battery Powered Party Speaker

Sale price$494.55 Regular price$549.50
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

JBL PartyBox 520 Portable Battery Powered Party SpeakerParty loud, party long Got big plans that call for big sound? The JBL PartyBox 520 knows how to set the mood with a vibey lightshow and our biggest, boldest, thumping sound yet, powered by the all new AI Sound Boost tech to help get everyone moving and shaking. Our sound might be heavy but this speaker is easy to move, whether we're setting up in the backyard, by the pool, or that place where our friend just dropped a pin. Every move is smooth with

Party loud, party long

Got big plans that call for big sound? The JBL PartyBox 520 knows how to set the mood with a vibey lightshow and our biggest, boldest, thumping sound yet, powered by the all new AI Sound Boost tech to help get everyone moving and shaking. Our sound might be heavy but this speaker is easy to move, whether we're setting up in the backyard, by the pool, or that place where our friend just dropped a pin. Every move is smooth with the PartyBox 520's grippy handle and wide wheels that are ready to roll when you are. With up to 15 hours of playtime, you can host multiple parties before it's time for a recharge. And don't worry about any splashes or spills, this speaker is designed to withstand the most raucous parties - fouls and all. What’s better than one JBL PartyBox 520? Two or three or more! Pair them up or link with other JBL Auracast™-enabled speakers and take the party up a notch.

Electrifying sound with AI Sound Boost

Powerful sound to make your playlist shine. This sound is made to match your energy, so you feel like you're hearing each song performed live. Turn it up louder and your music will still sound great, as our new proprietary tech, AI Sound Boost analyzes your music in realtime to deliver maximum acoustic performance with less distortion.

Futuristic lightshow

Did someone say lightshow? Dance the night away with glowing light patterns and strobe effects that make any event a whole mood.

Up to 15 hours of play time

Keep the good vibes going on a single charge with up to 15 hours play time. And if 15 hours of nonstop jams isn’t enough, simply swap out the replaceable battery to keep the music going. Or charge for 10 minutes and get an extra 2 hours of play time. *Additional replaceable battery sold separately.

Multi-speaker connection by Auracast™

Bigger parties call for even bigger sound. Pair two PartyBox 520s for true stereo vibes via Auracast™, or connect multiole JBLAuracast™-enabled speakers wirelessly and let your music grow with your party size.

Control your party, right from the JBL PartyBox app

Don't feel stuck on speaker babysitting duty. Control your music, EQ settings, and lightshow from the JBL PartyBox app, wherever the party takes you.

Telescopic handle and wide sturdy wheels

Wherever you go the JBL PartyBox 520 is ready for action with a handle that can extend and roll wheels for a smooth ride.

IPX4 Splash proof

Spills and splashes happen...don't sweat the mess. The JBL PartyBox 520 is IPX4 splash proof so your flow is never interrupted.

Seamless high-quality audio connectivity

Use the USB-C to connect to your fave streaming or karaoke app with high quality audio, so everyone can get their groove on.

Easy connection to mic, guitar or DJ console with two XLR inputs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28700596071

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4.2 ★★★★★
Based on 28 reviews
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Product Reviews
M
Verified Purchase
Milena Reale
Lake Worth, US
★★★★★ 5
Durable, Engaging, and Perfect for Small Dogs
Size: Small
The Starmark Everlasting Treat Bento Ball is fantastic! My small dog loves it, and it keeps them entertained for a long time. The toy is tough and durable, perfect for chewing, and the treat-dispensing feature makes playtime even more engaging. A great way to keep dogs mentally and physically stimulated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
J
Verified Purchase
Jasmine
Massapequa, US
★★★★★ 4
Great toy, just no match for my dog
Size: Large
I love this toy but it was unfortunately no match for my 75lb catahoula leopard dog, it took her about an hour tops to rip the treat out of the ball entirely and walk off with it to eat it 🤣 the side I put a bunch of her smaller treats into kept her busy longer. I'll definitely keep using it, she absolutely loves it, but shes just too good at tearing things up 😅 To be fair, shes a really heavy chewer, and usually gets frozen marrow bones as treats. This is a great alternative, especially for the price, its nice and heavy, she hasnt chewed through the rubber yet, but it probably wont be long. She doesn't throw it around like she does her other balls, but when I toss it to her its got a good bounce.
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Reviewed in the United States on November 23, 2025
R
Verified Purchase
Roni
Draper, US
★★★★★ 5
KEEPS MY ENERGETIC 1 YR OLD LAB BUSY
Size: Large
Anyone that has a field Lab knows you have to keep them busy which is difficult with the snow that won’t melt and the unusual -15 degree windchills we are having in NYC. Like others I’ve wasted so much money on various toys and puzzles trying to keep her busy and mentally stimulated. She either destroys them in minutes or won’t touch them. However, these with treats inside are fantastic. She loves the chicken flavor treats that go inside the ball. The treats for the holder are pricey but worth it so it keeps her busy for a while and she doesn’t get super hyper with cabin fever. Once I can get her back outside for longer periods to play and run off her excess energy I probably won’t be buying them on a regular basis given the price and that they only last a couple of hours given her strong jaws….Probably only for a special treat. However, for now they are worth every penny. The only con is they are difficult to get into the holder which is good so she can’t remove it.
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Reviewed in the United States on February 6, 2026
D
Verified Purchase
Destiny
Fort Morgan, US
★★★★★ 5
We love em!
Size: Medium, Size: Medium
My dog loves these! I get a size smaller so it’s harder for him to eat. He’s 70lbs I get him the medium and it will last him 4 ish days. I also fuill the back with dog safe peanut butter, broken treats, and his food. This keeps him happy while I’m at work :) for reference he’s a gsd, and Australian shepherd mix. He never lets it get too far away, and proudly carries it along even when empty. He had one for over a year that just now started to break. They are very strong, great for chewers, and worth their weight in gold! When empty they also make them have the funniest faces🤣 again my dog had the first one for over a year before it started to rip. They are hardy.
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Reviewed in the United States on January 21, 2026
M
Verified Purchase
Mats
West Palm Beach, US
★★★★★ 1
Wrong item sent
Size: Small, Size: Small
The bento ball itself is great but the extra 16 treats that were sent as part of the purchase were the wrong kind. The picture used in the Amazon ad is the one shown in the left part of the picture I posted (dome shaped treats with a dog named Lacey in the picture), and what I received is shown in the right part of the picture (ridged treats with a dog named Bella in the picture). The problem with the Bella treats is that they are a bit smaller than the Lacey treats which means that they dont fit sugly into the bento ball. This in turn means that my little maltipoo gets them out of the bento ball in a few minutes. This defeats the whol purpose of the treat, and even worse this is a choking hazard for small dogs which makes the product unusable for me. FYI - I have never had this problem with the Lacey treats - they work great which is why I bought this product since this is what was shown in the picture. I sent a message to the vendor about this but have not heard anything back. Amazon offered to refund me half of the total purchase price if I sent back both the ball and the 7 of the 8 treat packages (I opened one only to discover this problem), which is also not great.
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Reviewed in the United States on January 26, 2025

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