Hassle-free shopping with our 30-day return policy.
Hassle-free shopping with our 30-day return policy.
Trusted since 2012 — Greentoe is where smart shoppers save big!
Trusted since 2012 — Greentoe is where smart shoppers save big!
2655 offers placed in the last 24 hours.
2655 offers placed in the last 24 hours.
Shop with confidence. Every product is brand new and warranty-backed from authorized retailers.
Brand new & warranty-backed products from authorized retailers.
Name your price. Negotiate your deal. Save big on every purchase.
Name your price. Negotiate your deal. Save big on every purchase.
Hassle-free shopping with our 30-day return policy.
Hassle-free shopping with our 30-day return policy.
Trusted since 2012 — Greentoe is where smart shoppers save big!
Trusted since 2012 — Greentoe is where smart shoppers save big!
- Greentoe Now!LIMITED TIME DEALS
- Photo
- TV's & Home Theater
- Appliances
- Baby
- Watches
- Optics
- Pro Video
- Extended Warranties
- More Categories
JBL PartyBox 520 400W Portable Party Speaker
Model: JBLPARTYBOX520AM
Topseller
33shoppers bought this in the past month
1/13
JBL PartyBox 520 400W Portable Party Speaker
Model: JBLPARTYBOX520AM
Topseller
Make an Offer!MSRP:
$879.95
Responses in minutes
Fast shipping
- Up to 400W of Audio Output
- 2 x 7.5" Woofers & 2 x 1" Tweeters
- Multi-Colored LED Lightshow
- Select Light Patterns & Strobe Effects
- Up to 15 Hours of Playback
- Swappable JBL BATTERY 600
- Bluetooth, USB & 3.5mm AUX Input
- Play Live Music via Dual XLR Inputs
- Grippy Telescopic Handle & Dual Wheels
- JBL PartyBox 520 400W Portable Party Speaker
- AC Power Cord (6.6')
- Limited 1-Year Manufacturer Warranty <i>(Electronics Excluding Loudspeaker)</i>
- Limited 5-Year Manufacturer Warranty <i>(Loudspeaker Excluding Electronics)</i>
Authorized RetailersManufacturer warranty included
New Products OnlyWe never sell used merchandise
Free ShippingOn most items
30 Days Returns*Minimum return policy
As Seen On...
"I don’t say this often, but there’s a new app that just might dramatically change the way you shop, and it’s called Greentoe."View article
"An E-Commerce Site Where You Can Haggle Down The Price"View article
"Consumer Reporter Lynda Baquero shows a website where you can bid on the items you want, from the manufacturer of choice, and known within a day or two if your offer is accepted."View article
"Greentoe wants to make the buying process easier by letting you name the price you want to pay for an item, and then they'll find a bargain on your behalf..."View article
"Name Your Price for Gadgets on New 'Priceline for Tech' Site"View article
"More Retailers See Haggling as a Price of Doing Business. "View article
"I don’t say this often, but there’s a new app that just might dramatically change the way you shop, and it’s called Greentoe."View article
"An E-Commerce Site Where You Can Haggle Down The Price"View article
What People Say...
Reviewer116527698
5/5
Turntable Treasure
"Found a great Turntable at a Great Price…Easy check out! Would gladly do business with again. Plus free shipping!"View article
Scaminjs
5/5
The only way to buy a TV
"Bought three TVs now and will come back every time"View article
Reviewer1661460878
5/5
Smoked
"Stumbled across this site, checked it out to see if it was legit, and Voilà I bit the bullet."View article
Reviewer1655329426
5/5
Easy!
"Great price and easy to use. Will definitely buy from again. "View article
Reviewer1947189363
5/5
Like ebay but better!
"Lots of retailers are willing to look at offers and give you the best prices!"View article
swperk
5/5
Great selection, great prices, fast shipping!
"I found just the TV I was looking for at the best price! Easy to make the purchase, and the TV is brand new with a full factory warranty. Shipping was lightning-fast and the TV shipping box was packed inside another box, so it arrived in perfect condition. Highly recommended!"View article
Reviewer2544461434
5/5
Best price!
"Placing my order for a new Samsung 43” frame tv was quick and easy. Plus I saved $100!"View article
Reviewer325911081
5/5
Blowing the budget cause these deals are amazing
"Got a top tier sound bar and TV for the price I was going to get just the tv. Awesome Site!"View article
GreatDeal2026
5/5
Smokin Football Season
"Great deal on 98" TCL TV & JBL Sound System!"View article
Reviewer1985157698
5/5
Easy process and great price
"Simple shopping and amazing pricing "View article
Reviewer3655183426
5/5
Great deal!
"$800 cheaper than costco. Can’t believe it."View article
Reviewer3863939974
5/5
Leary at first, but...
"I had not used or heard about Greentoe. I checked their reputation online before ordering an expensive Christmas gift. I saved 34% from best in-person price at retailers. The item arrived when and as described. Happy customer. Will use again."View article
Kevybean04
5/5
Best price, Brand New amd easy to oder
"Best price and very easy to order."View article
Reviewer4137920598
5/5
Finally!
"Been wanting this TV for so long but it was always just slightly over my budget. Greentoe helped me get there!"View article
Reviewer1847861951
5/5
OMG Green toe rocks
"I did not have the money to buy this TV at the retail price of $2700. Thank you for offering this service. Now i can watch TV after 6 months. My current TV burned out 6 months ago"View article
Reviewer2331278360
5/5
Easy Peasy
"It took less than 5 minutes to find the product, create account, and make the payment. Easiest purchase ever and i saved $500!"View article
Reviewer3707316049
5/5
Best price, easy process.
"I randomly found this site when something for a new bulova watch I wanted, and it was the lowest price I had seen. The checkout was easy. I couldn't ask for better."View article
Reviewer1907313029
5/5
ImchillinwithGreentoe
"I was looking me dream fridge and you guys had it at a price I could afford!!!!! Thanks SO much!"View article
JasGod
5/5
Incredible Site & Service
"Absolutely fantastic site to get deals on items especially if you missed out on sales in the past. I cannot recommend Greentoe enough."View article
1ezbuyer
5/5
Great Prices and Great Experience
"I’ve purchased two TVs through Greentoe, and both experiences have been excellent. Best prices I could find anywhere, and both TVs were delivered right to my door without any issues.
My only mistake was forgetting that Greentoe offers a lot more than just TVs! I recently purchased applioances elsewhere and afterward realized I should have checked Greentoe first.
Greentoe will definitely be one of the first places I check before making a major purchase. Let's get the word out, and let the free market dictate prices. Craig Barton Scottsdale AZ"View article
Reviewer1265174373
5/5
Superfast savincash
"Exactly like the title- buddy turned me onto you guys. seems pretty bad-a! Killer business model! Welcome to the 21st century!"View article
DealMaker1217344194
5/5
More like DealToe Now
"I’ve been shopping for a soundbar/ surround sound that I wanted and found it as a Greentoe Now offer. I had already made an offer that was countered at $962. Thought I’d take one more look and found this Greentoe Now deal and after tax came back at $878.****. Great deal!"View article
KarenP193703804
5/5
Very pleased
"Easy to manuever & quick customer service response"View article
Reviewer116527698
5/5
Turntable Treasure
"Found a great Turntable at a Great Price…Easy check out! Would gladly do business with again. Plus free shipping!"View article
Scaminjs
5/5
The only way to buy a TV
"Bought three TVs now and will come back every time"View article
Specifications
Wired Connectivity
| Inputs/Outputs | 1x USB-C (Audio/Power) Input/Output 1x 1/8" / 3.5 mm Stereo (Audio) Input 2x XLR (Audio) Input |
|---|
Speaker System
| Drivers | 2x 7.5" / 190.5 mm Woofers 2x 1" / 25.4 mm Tweeters |
|---|---|
| Signal to Noise Ratio | >80 dB |
| Frequency Response | 40 Hz to 20 kHz |
| Power Output | 400 W |
Power
| Battery Voltage | 21.6 V |
|---|---|
| Estimated Battery Life | 15 Hours |
| USB Power | 5 VDC at 3 A, 15 W (Per USB-C) Output 9 VDC at 3 A, 27 W (Per USB-C) Output 11 VDC at 2.7 A, 29.7 W (Per USB-C) Output 15 VDC at 2 A, 30 W (Per USB-C) Output 16 VDC at 1.8 A, 28.8 W (Per USB-C) Output 20 VDC at 1.5 A, 30 W (Per USB-C) Output |
| Battery Capacity | 4584 mAh / 99.02 Wh |
| Battery Chemistry | Lithium-Ion |
| Input Power | 100 to 240 VAC, 50 / 60 Hz |
| Battery Charging Time | 3 Hours |
Physical
| Environmental Resistance | Water-Resistant (IPX4) |
|---|---|
| Dimensions (W x H x D) | 16.3 x 30.3 x 14.5" / 415 x 769 x 369 mm |
| Color | Black |
| Weight | 56.2 lb / 25.5 kg |
Packaging Info
| Box Dimensions (LxWxH) | 33.5 x 19 x 19" |
|---|---|
| Package Weight | 64.38 lb |
Key Specs
| Frequency Response | 40 Hz to 20 kHz |
|---|---|
| Drivers | 2x 7.5" / 190.5 mm Woofers 2x 1" / 25.4 mm Tweeters |
| Power Output | 400 W |
| Bluetooth | 5.4 |
Bluetooth Connectivity
| Bluetooth Transmitter Modulation | π/4 DQPSK, 8DPSK, GFSK |
|---|---|
| Supported Bluetooth Profiles | A2DP 1.4 AVRCP 1.6 |
| Bluetooth | 5.4 |
| Transmitter Power | 18 dBm |
JBL PartyBox 520 400W Portable Party Speaker is rated
4.9 out of
5 by
34.
Rated 5 out of
5
by
Mikey Mike from
You need this if you party!
[This review was collected as part of a promotion.] This thing is awesome! I was very skeptical of the party box line, but I am a believer now. The 520 is absolutely amazing. It’s not just a speaker system, but a true music experience. JBL sound quality, massive sound, and lights! The entire family jammed out for hours the first night we had it. Outside, the sound carries a very open area clearly. The 520 is fantastic for outdoor parties, pool days, and night parties are that much better due to the lighting effects (kids absolutely love it!). This is now one of my top 5 JBL favorite items ever! If you need big sound, the Party Box 520 is a no brainer.
Date published: 2025-06-01
Rated 5 out of
5
by
Harley boy from
New 520 party box !! Smashing it!
[This review was collected as part of a promotion.] This is real nice party box. It has a real clear sound and good base. The lights are nice and entertaining. I like that it can be linked back to other TWS units. This is not my first party box. I have a 310 in my garage and have used it for years. This new 520 has better sound quality and the volume has way more push. I use it out by the pool and it is perfect. The fact it is splash resistant is just what I needed. The AI sound is a nice addition so you aren’t adjusting it all the time. It is a heavier unit but the bigger wheels make it easy to move.
Date published: 2025-05-27
Rated 5 out of
5
by
nnutman from
Amazing sound, very powerful speaker!
[This review was collected as part of a promotion.] Amazing sound! The box is huge, connect easily to my Google TV with Bluetooth and the quality of watching Basketball or a movie is just wow.
This can easily be your TV sound system, and you can move it around...
The speaker is heavy, but the wheels help to move it, I was able to connect to my Flex TV as well and to my phone.
You can connect a Mic and a guitar as well.
It comes with a battery that you can replace in the future. It was not there on older models.
What i liked about this huge speaker is that it can replace all the speakers I have, specially for TV and Desktop.
There are lights and sounds you can change on the top of the speaker and JBL App (I used the android one) provide you full control of the speaker, include updates.
Enjoy Movies as never before!
Date published: 2025-05-29
Rated 5 out of
5
by
The afterburner from
Used it about 3 times so far and I have enjoyed it, bass is fenomenal the clarity of song amazing love it so far
Date published: 2026-05-04
Rated 5 out of
5
by
Miguelito 350 from
… The Perfect Speaker to have a Party anywhere …
[This review was collected as part of a promotion.] JBL PARTYBOX 520
I got this Speaker ( Partybox 520 ) a few days ago
and ooh my God , I am beyond impressed how good and
how loud this is . It has great sound and as deep Bass as to be
expected being a JBL Product.
We used it at a Barbecue yesterday and everyone there loved it .
They were Amazed how good it sounds and how cool and practical
the Partybox i . Also very easy to use as all the buttons and features
are pretty straight forward.
- Design.. the Partybox 520 looks pretty cool , the suitcase idea is
very ingenious. The telescopic handle and the wheels make pretty
easy to move and maneuver.
- Sound .. as JBL Product it sounds amazing , just in a much
larger scale this time. You can become a DJ and entertain your
family and friends.
- Control Panel.. all the buttons on top and on the back are easy to use.
You can Turn ON and OFF the lights just by pressing the button
on the top panel.
I found that with the JBL Partybox App you can turn the
speaker off if you desire.
- Size.. in my opinion is comparable to a large suitcase,
it is sturdy and weighs around 50 lbs.
Overall I think is another great product from JBL.
Date published: 2025-05-25
Rated 5 out of
5
by
Sam1956 from
Great features and sound
I just received my speaker yesterday and played it all night. That speaker is a beast. I have owned a JBL party box 300 and it’s no comparison to this speaker. The sound is crisp and distinct. I recommend this party box with no reservations
Date published: 2025-12-14
Rated 5 out of
5
by
Frankowitz from
BIG Sound BIG Package!
[This review was collected as part of a promotion.] OK, this is a BIG speaker, with a BIG sound. If you have heard, or own, any JBL products you know that GREAT JBL bass sound and the PartyBox 520 has the same sound. It WILL fill big spaces, like a pool or deck area. It would also be great to have in a party room or for a yard party. Operation and connection, using Bluetooth, are simple; it uses the same sound effects as other JBL products to confirm things, including Bluetooth connection. When those itty-bitty speakers say that they “have a big sound….” THIS is the sound they are talking about. That said, it also performed wonderfully at lower (living room) levels for me. It would also be great as amplification for a podium Microphone or two. There are two XLR inputs, one for Line in, on the back with adapters for Stereo plugs…. perfect for an instrument and microphone if you are a performer on a Patio or medium size club space. It also takes USB-C and a mini-plug Aux input. On top are controls for Microphone input, including bass, treble and echo. According to the specs, the Party Box 520 is ‘Splash-proof’. It’s powered by a JBL battery that is replaceable, it takes about 3 hours to charge, also according to the specs. Mine was 50% charged when delivered and I charged it overnight before use.
First Thing: I strongly encourage getting the App for control of the PartyBox. There are features in the app which allow customization, including a seven band Equalizer with other presets and different types of Bass Response. The App is also the only way to update the speaker’s firmware, something my app did automatically on the first connection. I presume that JBL will update firmware, and the app, as different options are enabled.
Effects Lab in the app is where the sound effects originate; one time per push. The app allows customization of three separate Sounds that play from buttons on top of the speaker. All the lighting settings are on the app, and it’s the same thing, you can set up your faves to play via controls on top of the speaker. It’s also possible to turn all the lighting off if needed, via the app.
All this BIG sound, Big Control and BIG fun comes in a relatively big package, as tall as the average 4-year-old, and heavier. There is a pop-up handle and wheels for portability. If you want to lift it, I suggest getting a partner. But for someone like a music therapist who travels within a building, it would be great.
Let’s get some actual usage. The JBL Party Box 520 is perfect for a pool or deck party, including music performances and/or Karaoke. Included with the sound effects are a few record scratches to use and some encouragement shoutouts. My favorite sound effect is the applause… I have that programmed into the “Thumbs Up” button on top so I can congratulate my kids after they sing. The lighting effects are great for a night-time yard party. Recently, I observed a Party Box in use as the primary sound system for a gym sized room and it was just fine - that bass really carries the sound.
Date published: 2025-08-01
Rated 5 out of
5
by
Adam from
Awesome do it all speaker.
[This review was collected as part of a promotion.] The speakers are awesome, they can fill up a whole room without really needing to crank the volume. Even when it gets louder the sounds dont get muddy and you can still have a quality output. The mic plug and plug factor was very easy to set up and using it for karaoke was a breeze. Just connect a bluetooth device and get a karoake app or lyrics video going with your mic and start singing. My only wish is that there was storage of some kind for mics or the power cable but I imagine 3d printing something would be easy enough.
Date published: 2025-07-22
- y_2026, m_10, d_10, h_12
- bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
- cp_1, bvpage1
- co_hasreviews, tv_0, tr_34
- loc_en_US, sid_GT-0773859, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
- clientName_greentoe
- Up to 400W of Audio Output
- 2 x 7.5" Woofers & 2 x 1" Tweeters
- Multi-Colored LED Lightshow
- Select Light Patterns & Strobe Effects
- Up to 15 Hours of Playback
- Swappable JBL BATTERY 600
- Bluetooth, USB & 3.5mm AUX Input
- Play Live Music via Dual XLR Inputs
- Grippy Telescopic Handle & Dual Wheels
- JBL PartyBox 520 400W Portable Party Speaker
- AC Power Cord (6.6')
- Limited 1-Year Manufacturer Warranty <i>(Electronics Excluding Loudspeaker)</i>
- Limited 5-Year Manufacturer Warranty <i>(Loudspeaker Excluding Electronics)</i>