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JBL PartyBox 300

Portable Bluetooth® speaker with light display

Item # 109PBOX300

Serious about having fun? Bring a JBL PartyBox 300 to your next shindig.

Serious about having fun? Bring a JBL PartyBox 300 to your next shindig.

Discontinued item
8 questions - 25 answers

Item # 109PBOX300

About the JBL PartyBox 300

Bring the party

Serious about having fun? Bring a JBL PartyBox 300 to your next shindig. This big, rugged, 35-pound speaker will crank out your tunes with massive, hard-hitting sound to get people moving. And the PartyBox 300's three-mode light effects help set the mood.

Bring the party

JBL PartyBox 300

Serious about having fun? Bring a JBL PartyBox 300 to your next shindig. This big, rugged, 35-pound speaker will crank out your tunes with massive, hard-hitting sound to get people moving. And the PartyBox 300's three-mode light effects help set the mood.

If anyone wants to sing or play along with the music, the PartyBox has both guitar and microphone inputs. Stream tunes via Bluetooth from your smartphone or tablet. Or plug in a flash drive preloaded with your party mix.

Big sound indoors and out

The PartyBox 300 features two 6-1/2” woofers and three 2-1/4” tweeters for powerful, clear sound. A rear-firing port reinforces the bass. And there's also selectable Bass Boost if you want to make your tunes thump even more.

Want bigger sound? You can pair two PartyBox 300 speakers together for either two-channel stereo or just to double the volume. The speakers can be paired wirelessly via Bluetooth, or they can be connected with RCA cables.

Making connections

You might use a Bluetooth phone or tablet as the music source most of the time, but you have other options, too. The stereo RCA input lets you connect a CD player or a turntable with built-in phono preamp. A USB port on the back lets you plug in flash drives.

There are two 1/4” input jacks — one for a microphone, the other for a guitar. Volume control knobs let you set their levels independently. These inputs let you either sing or play along to music already playing through the PartyBox 300. Hello, karaoke night!

Portability and power

Integrated carry handles make the PartyBox 300 easier to transport. (But at 35 pounds, it's one of the heaviest "portable Bluetooth speakers" we've ever seen.) The speaker has a built-in rechargeable battery that can deliver up to 18 hours of operation. You can use the speaker's USB port to charge your smartphone or tablet. And the PartyBox 300 comes with a detachable AC power cord, so you can keep the sound and light show going indefinitely.

Rolling (and rocking) on the river — a hands-on review

"Two of my favorite things in the world are music and camping. When I first saw and heard the JBL PartyBox 300 I knew that I had to have one. My friends were just as impressed when I showed up at our camping spot with my latest purchase.

"We listen to a wide variety of music and all of our playlists sounded great through the PartyBox! With 250 watts of power (120 watts RMS) we rocked out while we relaxed by the river. The bass boost function really helped those deep bass notes rumble through our campsite.

"After dark, we sat around the fire. There were surprised looks when I turned on the PartyBox's built-in light effects. With lights flashing in time to the music this Bluetooth speaker took our music to another level.

"When my cell phone battery started dying, I just plugged it into the PartyBox's USB port. The music continued to play long after my cell phone would have died without the charging source in the speaker.

"With 18 hours of battery life, the speaker kept the music playing as we talked and laughed well into the night. And with the added guitar and mic inputs, we could plug into the speaker and rock right along with the music playing."

 - Greg M., Crutchfield IT services specialist


Product highlights:

  • two 6-1/2" woofers, and three 2-1/4" tweeters
  • frequency response: 45-20,000 Hz
  • built-in Bluetooth
  • light effects with three modes: Meter, Pulse, and Party
  • pair two JBL PartyBox 300 speakers
    • for two-channel stereo or for double volume
    • connect wirelessly via Bluetooth, or wired via RCA stereo cables (not included)
  • EQ settings and bass boost
  • RCA stereo input and output
  • stereo minijack input for portable devices
  • two 1/4" input jack inputs for microphone and guitar
    • independent volume controls
  • USB port for flash drives and recharging smartphones and tablets
  • splash-resistant ported cabinet
  • integrated carry handles
  • 10,400mAh built-in rechargeable lithium-ion battery lasts up to 18 hours
  • detachable AC charging cable
  • 12-1/4"W x 27-1/16"H x 12-1/2"D
  • weight: 35 lbs.
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the box:

  • Bluetooth portable speaker
  • 5' AC power cord
  • 12' DC cable
  • Quick Start Guide
  • Warranty Card
  • Important Safety Instructions

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JBL PartyBox 300 reviews

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Crutchfield response

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More details on the JBL PartyBox 300

Stacey B.

Features & specs

Weather-resistant No
Waterproof No
Speakerphone Mic No
NFC Touch Pairing No

Product Research


JBL Signature Sound: The JBL PartyBox 300 is equipped with three 2.25" dome tweeters and dual 6.5" cone woofers powered by a built-in 120-watt (RMS)/240-watt (Peak) amplifier for dynamic JBL signature sound with clear highs and deep bass. There is rear-firing port and Bass Boost function which helps enhance the powered speaker's bass performance.

TWS (True Wireless Stereo): True Wireless Stereo uses Bluetooth to wirelessly link two PartyBox speakers together as a stereo pair. There is a L/R switch on the back of the speaker that lets you choose which speaker plays the left channel and which speaker plays the right channel.

Light Effects: The JBL PartyBox 300 features lighting effects to create a "party" experience. You can choose from 4 Light Modes - Meter, Pulse, Party, or Off.

Bluetooth Audio Streaming: The JBL PartyBox 300 is equipped with built-in Bluetooth 4.2 with support for wireless audio streaming (A2DP) and playback control (AVRCP). You'll be able to stream stored music, music apps, and other audio content on Bluetooth source device (such as your smartphone, tablet, computer, or laptop) to the PartyBox 300. You'll also be able to control basic playback functions such as Play, Pause, & Skip from the speaker. You will continue to use your Bluetooth-enabled device for advanced music navigation and to view song/artist/album information.

Note: The JBL PartyBox 300 does not support Bluetooth hands-free communication for making and answering phone calls.

USB Port: The JBL PartyBox 300 features a USB (type-A) port for connection of a USB mass storage class (MSC) device, such as a USB thumbdrive. The PartyBox 300 supports playback of MP3, WMA, and WAV music files loaded onto a compatible USB MSC device formatted in FAT16 or FAT32. The USB port (rated at 5V/2.1A) can also be used to charge a USB-enabled portable devices, like your smartphone or tablet.

Note: The USB port does not support playback of Apple iOS or Android OS devices.

Dual Aux Inputs & Output: The JBL PartyBox 300 is outfitted with dual Aux inputs, consisting of a 3.5mm input and stereo RCA input, for connection of an external audio device. The stereo RCA output can be used to daisy-chain two PartyBox speakers together to create bigger sound or connect a recording device.

Mic & Guitar Inputs: The JBL PartyBox 300 offers a 1/4" Mic and 1/4" Guitar input to really get your party started. The Mic and Guitar input each have an independent gain control.

Power Requirements: The JBL PartyBox 300 can be powered via 120V AC, 12V DC, or via its built-in battery. It includes a detachable 5' AC power cord which plugs into the back of the speaker and into an AC power outlet or surge protector (sold separately). It also includes a 12' DC cable that plugs into the back of the speaker and into the cigarette lighter port or 12-volt power port of your vehicle. The built-in rechargeable lithium-ion battery (1040mAH/7.2V) provides up to 18 hours of playback with 5 hours of charge time.

Mounting Options: The JBL PartyBox 300 can be positioned vertically or horizontally. For best sound quality always make sure two of the three tweeters are placed on the upper side of the speaker enclosure.

Integrated Carry Handles: Two integrated carry handles make it easy to transport the JBL PartyBox 300 speaker.

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Customer Q&A

8 questions already asked

Can you leave it alway plug to the outlet?
[ Bruce  Nov 22, 2020 ]
5 answers
[ Richard  Nov 23, 2020 ]
Not sure, I don't. Only plug mine in when needed. I get a lot of hours of listening on a charged battery. Probably only plug it in once a month.
[ Mike  Nov 23, 2020 ]
Yes you can't, no problems what so ever.
[ Ramon  Nov 22, 2020 ]
I have left it plugged in for months at a time and nothing bad ever happened. Hope this helps.
[ Ramiro  Nov 22, 2020 ]
I almost always leave mine plugged into the AC outlet. When I am done I just turn it off.
[ Nick  Nov 22, 2020 ]
How do I register my JBL party box 300 for its Warranty?
[ Shark  Jun 20, 2020 ]
1 answer
The should have been a warranty card in the box with the speaker. it should have directions for registering the product.
[ Calvin  Jul 07, 2020 ]  Staff
How do you use the EQ settings?
[ Shark  Jun 20, 2020 ]
2 answers
I 've always left it on factory settings.
[ JOHN  Jun 20, 2020 ]
EQ would be set from the source
[ Brian  Jun 20, 2020 ]
Does the tweeter on the bottom only work when a mic or guitar is connected and gain is turned up as I don't hear it working at all when listening to it via Bluetooth,Analog or Auxiliary?
[ Shark  Jun 10, 2020 ]
2 answers
All 3 tweeters work when Blue-toothed to iPod.
[ Mike  Jun 20, 2020 ]
When the speaker is standing upright only the top 2 tweeters work, but when you position the speaker sideways the third tweeter should start working. I do think it's kind of strange that there are 3 and not 4 tweeters, perhaps the sound is more balanced with 3 and 4 would be too much treble.
[ John Michael  Jun 10, 2020 ]
Can you charge it overnight?
[ George  Jan 10, 2020 ]
3 answers
, it charges in a couple hours
[ Terry  Jan 10, 2020 ]
Yes, you can charge it overnight. The regular power cord is used for power or charging... it has lights on top to tell you charged status. The orange car cord is only for power to play it; it will not charge it. I love my Party Box and use it for soccer.
[ ganemesis  Jan 10, 2020 ]
[ Justin  Jan 10, 2020 ]
Does anywone make tripod stands for these??. Im searching all over the place!!!?
[ Gregor  Aug 18, 2019 ]
2 answers
It is not designed to be used with a stand. There is no slot or mounting position on the speaker. IT is designed to be set on a flat surface.
[ Calvin  Aug 25, 2019 ]  Staff
Sorry, I have not looked into a stand yet.
[ Mike  Aug 18, 2019 ]
can you turn off the led lighting?
[ robert  May 22, 2019 ]
9 answers
Yes you can. It's the only way I use my party box.
[ Francisco  May 24, 2019 ]
[ divora  May 23, 2019 ]
Yes the lEd lighting is Optional with the push of a button
[ Noah  May 22, 2019 ]
yes you can. I believe it has 3 led settings and you may also turn them off
[ Russel  May 22, 2019 ]
Yes you need to hold down the lighting button for a few seconds and they turn off.
[ Justin  May 22, 2019 ]
[ Robert  May 22, 2019 ]
Yes...there is a button in the top of the system that allows you to toggle through three different light patterns - and no lights at all.
[ Patrick  May 22, 2019 ]
Yes you can.
[ Melissa  May 22, 2019 ]
I haven't done so, but I heard on a YouTube review that you can. Go check out Flossy Carter
[ ganemesis  May 22, 2019 ]

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