JBL PartyBox 300 Portable Bluetooth Party Speaker with Rechargeable Battery

Model: JBLPARTYBOX300AM UPC: 050036347426 Item: 172397


Regular Price: $540.00

Save: $140.05 (26%)

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Winner - The Best Bluetooth Speakers of 2020

This product has been selected as one of The Best Bluetooth Speakers of 2020. 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

4.3 / 5.0
46 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Party Bomber
I buy this "baby" 3 months ago, im still shocked! This is real bomb!
February 3, 2020
Originally posted at
The speaker is probably the best I have ever bought. The sound quality is amazing and like nothing I have ever heard before. The shape is portable and yet large at the same time . The LED lights are awesome and after not being sure whether to buy this I am so glad I did. Absolutely amazing.
January 12, 2020
Originally posted at
I bought in the official store of JBL Partybox 300 (2pcs, I wanted to use them together, synchronizing via bluetooth in TWS mode. But I encountered such a problem: the speakers are synchronized, but after a while there is a slight delay for a split second in one of the channels and the effect of desynchronization appears, as if it were an echo, it is impossible to listen, it sounds porridge. We have to turn them off and pair again, then again the same thing repeats after a while. Thus, it is not possible to use the speakers together as the left and right channels in TWS mode! What to do? Is there any new firmware? Most likely this is a software problem. The site did not find any options for downloading firmware.

When connected using an RCA-RCA cable, the volume via bluetooth from the source is regulated in only one channel and the second speaker must be added and decreased manually! This is complete garbage, you understand. I’m waiting for a solution to the problem, as you have officially stated that you can use two speakers in TWS mode for a denser sound, for which I bought two pieces, but in fact it is impossible to do.
January 10, 2020
Originally posted at
Great sound quality.
Great sound quality with all types of music...visual effects add to the music experience.
December 26, 2019
Originally posted at
Love this Partybox 300
Got mine a couple days ago. So far I'm very happy. Minor issues.
(1) every time I disconnected my bluetooth from my phone while connected to the speaker( switching off bluetooth) and I try to switch it back on and reconnect. It makes a loud buzzing sound. Then inhale to switch off the speaker. Also why did u include a low frequency mode in all your speakers. Won't that damage them?
December 24, 2019
Originally posted at
I like everything except the one reason I bought i
I bought a boombox was so impressed with it I went out and bought a party box 300 they can't play music at the same time I am not happy if I could play boombox and party box 300 at the same time it would be perfect but I can't so now I have to play one or the other
December 15, 2019
Originally posted at
Turns itself down constantly
Really liked it until everytime i use it it locks the volume really low forcing me to restart every time i use it
December 10, 2019
Originally posted at
Awesome bass !
I’m so glad I made this purchase, the sound quality is perfect and the bass is incredible! It rocks the entire house!
December 10, 2019
Originally posted at
I bought this product a month ago and am so impressed
November 28, 2019
Originally posted at
Happy with it works very well nice light show and the bass boost is great
November 8, 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.