JBL PartyBox 300 Refurbished
$299.99 Price reduced from $499.95 to Save 40%
JBL PartyBox 300 JBL Signature Sound - Image

JBL Signature Sound

Enjoy an immersive audio experience at home or at a party that only JBL sound can provide.

JBL PartyBox 300 Light shows - Image

Light shows

There's a light mode for every mood: Meter, Pulse and Party mode.

JBL PartyBox 300 Portable with rechargeable battery - Image

Portable with rechargeable battery

Plug in to the 12V DC output of your car or use the built-in 10,000mAh battery for up to 18 hours of playtime.


JBL PartyBox 300 Mic and guitar inputs - Image

Mic and guitar inputs

Plug in your mic or guitar and take the stage.

JBL PartyBox 300 Wireless Bluetooth Streaming - Image

Wireless Bluetooth Streaming

Wirelessly stream high-quality sound from your smartphone or tablet.

JBL PartyBox 300 USB playback - Image

USB playback

Pre-program your party or event with your favorite playlist from a USB thumb drive!

JBL PartyBox 300 TWS and RCA - Image


Connect compatible speakers wirelelessly via TWS (True Wireless Stereo using Bluetooth connection up to 2 party speakers) or wired via one RCA outpur to another.

JBL PartyBox 300 USB recharging for external devices - Image

USB recharging for external devices

A USB port on the JBL PartyBox lets you charge other USB devices right from the speaker. So you don’t need an extra charger to keep your devices powered up.

Frequently Bought Together

Specs & Downloads



Be Loud, Be Proud, Be Ready To Party!

The JBL PartyBox 300 is a powerful party speaker with JBL sound quality and vivid light effects. Thanks to its rechargeable battery and 12V DC input you can bring the party everywhere. Just plug in your Mic or Guitar and take the stage or stream your playlist via Bluetooth or from a USB stick. Connect two PartyBox speakers wirelessly with the TWS feature or wired from one RCA output to another RCA input. Let's get the party started!

General Specifications

Output power (W)

Audio Specifications

Dynamic frequency response range (Hz)


Dimensions (in)
12.2 x 27.2 x 12.6
Dimensions (cm)
31 x 69 x 32
Weight (kgs)
Weight (lbs)

Control and Connection Specifications

Bluetooth profiles
A2DP V1.3, AVRCP V1.6
Bluetooth frequency


Charging time (hrs)
Maximum music playing time (hrs)


Charging cable
3.5 mm audio cable Input
JBL Signature Sound
Rechargable battery


The product is in compliance with the European Union energy legislation. 1) Bluetooth connection mode - The product is intended to be used for streaming music via Bluetooth connection. A consumer can stream Bluetooth audio to the speaker. When the product is connected through Bluetooth, the Bluetooth connection must remain active at all times to ensure proper operation. The product will enter into sleep mode (networked standby), after 20 minutes without operation, the power consumption @ sleep is less than 2.0 Watts, after which it can be re-activated via Bluetooth connection. 2) Bluetooth disconnection mode - The product will enter into standby mode, after 20 minutes without operation, the power consumption @ standby is less than 0.5 Watts.

What's in The Box?

  • 1 x JBL Party Speaker
  • 1 x AC Power Code (AC Plug varies by Region)
  • 1 x 12V DC Cable
  • 1 x Quick-Start Guide
  • 1 x Warranty Card
  • 1 x Safety Sheet
What's in The Box?

Documents & Downloads

Reviews and Q&A

Customer Reviews

Rated 5 out of 5 by from PB 3000 FTW!!! My biggest and best Bluetooth speaker, felt it was a little lonely so I bought a second and man what a pair!!! One was beyond enough to pass the upstaris neighbors off at under 50% now its a risk to use them higher then 40! This thing is great in the Xuv giving my sound system the bass it was missing, and the fact that I can bring it in and out is super pleasing, dont have to sacrifice more money on an amp or anything! Tailgating is a blast and i recently used them at a friend's outside wedding, there were perfect !!! Beyond pleased with these and lookin forward to getting the big and little Brothers as well as any new party box speakers in the future!
Date published: 2020-08-08
Rated 5 out of 5 by from Sounds Great/Gets Loud Love this speaker. Gets really loud for a Bluetooth speaker. Only thing I don't like is it is not waterproof or water-resistant at all. Also it is very heavy to move around. I want to get a stand with wheels to put it on so I can roll it where I want it. As Long as I'm complaining, would be really nice if there were a bass and treble adjustment. For a speaker that costs over $400 I don't think that's alot to ask. I find when you're using an equalizer in an app on your phone it always brings the volume down five notches. Overall I would definitely recommend this for someone looking for an in-home speaker that they weren't planning on taking anywhere.
Date published: 2020-02-20
Rated 5 out of 5 by from JBL PartyBox 300 love the partybox 300 wife hates it but are sons love it especally when we go out on are bikes and are blasting there faverite music and turning heads. it took me 3 years to get one of these speakers ever since i saw one at a frys store in burbank ca and i told my wife that one day ill get one of these speakers and of course she said no your not. ive been in the dog house (in trouble) with my wife ever since i recieved the speaker but its worth the trouble. i would love to have a second one to pair to it but that will be 3 or 4 years from now or if ill ever be able to at all, but thank you jbl you made this guy happy and if im ever able to buy another speaker or any of your products again even if it means going to the doghouse again it will be worth it. thank you and keep them coming.
Date published: 2020-04-24
Rated 3 out of 5 by from Great sound . Where is the app for 300? Not 310… (((I bought this product when it first released at orginal price 500$))) now its 400$. Because of party box 310 . I mean i was waiting for an app for the partybox 300 and still no app till this day . Ive always owned jbl products. Come on now where the app for the 300????? Put an app EQUALIZER… I want to lower the bass is loud and cant put it up louder because the bass is overpowering the treble . Its a great bluetooth speaker . I cant afford a 310, i already spent that on a 300 . Please harman and jbl company do something about the 300 you just left it in the dust 500$ .. their should be an option to TRADE an 300 for a 310
Date published: 2021-09-18
Rated 1 out of 5 by from DOES NOT POWER ON!!!! I purchased this speaker from Best Buy. I used it a handful of times when it wouldn’t power on. I contacted JBL customer service, because it was under manufacturer warranty I sent the speaker back to receive a refurbished speaker. It did not work. I sent that one back to get my third JBL party box 300...and guess what, it doesn’t work. I just want a refund!!! This is a lemon of a product. Tried to return to Best Buy because JBL customer service let me know I could with a code. Went to Best Buy with the code that was given to me from JBL customer service, that code does not work! I am now returning my third JBL to receive my FOURTH JBL speaker... don’t buy!!!!!!!
Date published: 2020-07-02
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Product Q&A

Hello, Is anyone else experiencing the issue of the sound stopping on Aux connection if the Volume from your laptop is below 12/100 ?

Asked by: nickel279
I am facing same problem. Doesn't matter how much high or low the sound is. and yes contacted the service centre but the answer i got is " This device is not compatible with Computers (Partybox 300) ".
Answered by: Shani
Date published: 2022-07-21

Hi, I see that you can plug in a guitar to this speaker. Is it safe to plug in a bass guitar as well. Secondly is the input for the guitar a typical 1/4" guitar cable jack, or would I need an adapter from 1/4" to 3.5mm? Thanks!

Asked by: BooleeTR
Yes it's safe to plug it in ,also, the input is for a standard 3.5mm stereo jack to 1/4 stereo plug.
Answered by: Mario at Customer service
Date published: 2021-06-06

Partybox 300 is turing up or down on its own when connected to iphone. At this point you cannot change the volume on device. You have to go to the speaker and increase or decrease volume. This is happening often . Has this happened to anyone else?

Asked by: tr72
Similar problem here, every time the song changes it turns down the volume to about 50%. EVERY TIME. It is very annoying and I really don't want to regret buying it for that money
Answered by: Stylianos
Date published: 2021-06-06

can i pair two jbl 300 speakers in stereo

Asked by: myhome
Pairing two JBL PartyBox 300 speakers together in stereo is possible through TWS (True Wireless Stereo) mode. Please check page 12 of your Qwner's Manual for instructions on how to activate TWS mode: https://bit.ly/3aw0p9x
Answered by: Ray at Customer Support
Date published: 2021-06-06

Is the JBL 300 stereo sound setup or mono

Asked by: Amanchy
JBL PartyBox 300 isn't mono but stereo that's why it has 3 tweeters, when you put it on side there will be only 2 tweeters playing in stereo mode (the bottom one and one of those 2 at the other side). In vertical position there is stereo too, but its hard to hear unless those 2 tweeters are too close but the bottom one is off, that means only 2 tweeters of 3 can play at the same time but it depends on position of the speaker.
Answered by: TheFill33
Date published: 2021-06-25

Can this speaker be mounted to a stand? If so , which model?

Asked by: Alex68Cali
Sim o PartyBox100
Answered by: MC47
Date published: 2021-06-06

Can I play 2 speakers at once and able to connect 2 18 inch ACTIVE SUB WOOFERS

Asked by: Levoss
You can play 2 Partyboxes together at once but unfortunately can't connect subwoofers with them.
Answered by: Mario at Customer service
Date published: 2021-06-06

would the jbl boombox with 2 or 3 charge 3s connected to it be louder than the partybox 300 or better in sound quality?

Asked by: Austin Smith
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer service
Date published: 2021-06-06
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