JBL PartyBox 300 Portable Bluetooth Party Speaker with Rechargeable Battery

Model: JBLPARTYBOX300AM UPC: 050036347426 Item: 172397


Regular Price: $540.00

Save: $140.05 (26%)

Savings include $100 instant rebate. Offer ends 12/15/2019.
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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
  • Mon: 9:30am - 8pm
  • Tues - Fri: 9:30am - 6pm
  • Sat: 9:30am - 5pm
  • Sun: 12:00pm - 5pm
(215) 368-8343
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38 Greenfield Avenue, Ardmore, PA 19003
  • Mon - Fri: 11am - 6pm
  • Sat: 10am - 6pm
  • Sun: 12pm - 5pm
(610) 649-7002
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Winner - The Best Bluetooth Speakers of 2019

This product has been selected as one of The Best Bluetooth Speakers of 2019. Our Gear Guides are highly-curated selections which represent the best of the best in their category. From televisions and Bluetooth speakers, to marine audio and outdoor speakers—-start (or finish) your shopping journey with our Gear Guides.

Product Information

Sound. Lights. Action!

The JBL PartyBox 300 is a powerful party speaker with JBL sound quality and vivid light effects. Thanks to its 12V DC input, you can bring your party everywhere with your car or a 12V DC battery source. 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!

JBL Signature Sound

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

Light Shows

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

Portable with Rechargeable Battery

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

Mic and Guitar Inputs

Plug in your mic or guitar and take the stage.

Wireless Bluetooth Streaming

Wirelessly stream high-quality sound from your smartphone or tablet

USB Playback

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


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

Prop 65 Warning

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.



  • Power inputs: 100 - 240V AC and 12V DC
  • DC power input: 12V 8A
  • Built-in battery: Li-ion 10.4Ah, 7.2V
  • Power consumption: 60W
  • Standby power: <2W with BT connection, <0.5W without BT connecting
  • USB output: 5V 2.1V
  • Speaker drivers: 2 woofers + 3 tweeters
  • Speaker impedance: 4 ohms
  • Total output power: 120W RMS
  • Signal-to-noise (S/N) ratio: 65dBA
  • Bluetooth version: 4.2
  • Bluetooth profile: A2DP, AVRCP
  • Bluetooth transmitter frequency range: 2402 - 2480MHz
  • Bluetooth maximum transmitter power: 8dBm (EIRP)
  • Bluetooth transmitter modulation: GFSK, π/4 DQPSK, 8DPSK
  • Bluetooth range: Approximately 10m (33 feet)
  • USB format: FAT16, FAT32
  • USB file format: .mp3, .wma, .wav
  • Input sensitivity
    • AUX In: 500mV RMS (RCA connector); 250mV rms (3.5mm connector)
    • Digital input: Bluetooth/USB - 12dBFS
  • Input terminals: RCA L/R, USB port, 3.5mm Aux-in, Mic/Guitar with volume control
  • Wireless connectivity: Bluetooth technology
  • Output terminals: RCA L/R
  • TWS (true Wireless Stereo) connecting up to 2 party speakers using Bluetooth technology
  • Bass Boost: Yes
  • Frequency response: 45Hz - 20kHz
  • Dimensions: 12.20" x 12.59" x 27.16"
  • Weight: 34.92 lbs.


What's in the Box

What's in the Box:

  • PartyBox 300 Bluetooth Party Speaker
  • Quick start guide
  • Warranty card
  • Safety sheet
  • AC power cord


Customer Reviews for JBL PartyBox 300 Portable Bluetooth Party Speaker with Rechargeable Battery

4.7 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
I mean what can I say! This speaker is AMAZING!
I was really skeptical in making such a big purchase like this especially for a Bluetooth speaker. It was either this or the JBL Boombox. They were both roughly the same price. On one hand, the boombox is water resistant. On the other hand, the party of was bigger, more speakers, 2 big subs, RGB lights!! You know I had to with the party box. No regrets with this speaker. Sound is amazing. Turn the lights down and let the built-in RGB lights provide some party lighting was THE cherry on top!
Water bottle for size comparison.
Water bottle for size comparison.
September 10, 2019
3 months ago
To soon to tell but sounds and looks great. Awesome so far
June 4, 2019
its ok.. i heard louder speakers
jbl party box 300 i expected more. shouldve added 4 tweeters for the price. its not loud enough. all light show alot of bass i mean it alot like 21 savage... no remote no control on the trebel or bass just adds more bass boost. for the price just think about it their is better speakers unless you care for the light show on this system. i expected better.
March 8, 2019
Originally posted at
Feel the Bass
Purchased the partybox to liven up the party experience
March 5, 2019
Originally posted at
great sound super bass
I've owned other jbl speakers and can't beat the quality of sound from jbl
February 28, 2019
Originally posted at
Favorite Speaker I've owned
I bought this Tuesday and it arrived Friday and immediately walked it to the park and met all my friends and played loud music while they played basketball and had a blast the bass is boomy and clear and the tweeters are super clear despite it being rated for 45 Hz It plays lower and you can still hear the bass clearly just not as loud but that makes sense I wish you could turn the white strobe leds off because for some songs it isn't just the right mood but thats something I can live with I'm here today at school with it we will see how the assistant principles like me toting thus huge thing around but i recommend this to anyone and everyone its the perfect speaker as long as your willing to work a little bit to get it places those who arent get the JBL boombox which is also an amazing speaker.
February 25, 2019
Originally posted at
Very Impressed!
I've had it for two weeks and I couldn't be more pleased. Crisp highs with thick bass that I can spread out over the neighborhood. Wonderful device.
February 18, 2019
Originally posted at
The party starter.
I bought this 2 weeks ago after watching many reviews on youtube of multiple products. Very happy with my purchase overall, great sound quality, the bass literally vibrates my full flat block and takes parties to the next level. Definitely would recommend.
February 5, 2019
Originally posted at
Crazy bass
Bought this thing for locker room and it shakes the walls! Insane bass great features overall best speaker out there.
February 3, 2019
Originally posted at
Not for the weak hearted
I bought this a month ago and it still thrills me blasting it loud. If u don’t like loud music it’s not for you, the bass is absolutely massive and the sheer power of the speaker rocks my walls- prepare to get many complaints from your neighbours!
January 19, 2019
Originally posted at


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Prop 65 Warning

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.