JBL PartyBox 300

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£399.99399.99 each

Pre-order today.

The expected in-stock date is 01 June 2019.

General Specifications

Power Inputs 100-240V AC and 12V DC
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 Yes
Bass Boost Yes
Frequency Response 45Hz-20kHz
Battery type Lithium-ion 74.88Wh (equivalent to 7.2V 1040mAh)
Battery charge time 5 hours
Battery Playtime 18 hours*

Audio Specifications

Transducers 2x6.5" woofer, 3x2.25" tweeter


Product dimensions (wxdxh) 310mm x 320mm x 690mm Yes
Bare Product Weight 15.84kg
Packaging dimensions (wxdxh) 388mm x 396mm x 823mm Yes
Product weight with packaging 18.27kg


Battery capacity (mAh) 10,400
Charging time (hrs) 5


Powerbank Yes
Splashproof No
Lightshow Yes
Bluetooth Yes
3.5 mm audio cable Input Yes
Auto-power off Yes
Karaoke function Yes
  • 1 x JBL Party Speaker
  • 1 x Quick-Start Guide
  • 1 x Warranty Card
  • 1 x Safety Sheet
  • 1 x AC Power Code (AC Plug varies by Region)
  • 1 x 12V DC Cable
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!

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JBL PartyBox 300 is rated 4.4 out of 5 by 64.
Rated 5 out of 5 by from Eén woord: SUPER Ik heb deze speaker net 1 uur in huis en ben er nu al helemaal weg van. Nog nooit een accu-speaker gezien met de kwaliteiten van de partybox 300. Dit ding heeft echt een hele diepe bass, het geluid blijft tot het maximale volume gebalanceerd en van zeer goede kwaliteit. De speaker vult gemakkelijk een grote woonkamer met goed geluid. De vloer trilt zelfs een beetje mee. Als de speaker in een hoekje wordt geplaatst is de bas echt mega, dan is dit zeker te vergelijken met die van een kleine home cinema subwoofer. De speaker is wel aan de zware kant en redelijk zwaar om te tillen. Ik zou deze speaker 100% aanraden vanwege het geluid, hij is wel redelijk zwaar. Maar als je een goeie speaker wilt voor feestjes dan zeker deze kopen!
Date published: 2018-11-22
Rated 5 out of 5 by from Batteri Er det muligt at kunne købe et ekstra batteri så man kan lade det ene op imens det andet bliver brugt?
Date published: 2019-03-20
Rated 5 out of 5 by from Une enceinte vraiment exceptionnelle. Bravo à l'équipe de réalisation. L'enceinte est belle, transportable malgré son poids, les lumieres sont réussies,elle déboite, le son est clair et les basses sont précises et très puissantes. J' aurais simplement souhaité un chouya de puissance encore, et des lumières. Mais clairement, un pas de géant est franchi depuis la boombox! :)
Date published: 2018-10-24
Rated 5 out of 5 by from Super geluid ! Ik heb deze twee weken geleden aangekocht en heb er al veel plezier mee gehad. Heel mooi design en prachtig geluid
Date published: 2019-02-26
Rated 5 out of 5 by from Top Bin begeistert. die Box ist ein ganzes Stück größer als die boombox . Klanglich noch ein großes Stück mehr tiefe . Lautstärke kann ich in % nicht einordnen. Aber ordentlich mehr Wums. Hier ein kleines Vergleichs Foto
Date published: 2018-10-17
Rated 3 out of 5 by from Habe mehr erwartet BassBoost ist viel zu überheblich, kein schöner Klang. Im normalen Gebrauch völlig ausreichend, bei guter Musikqualität auch ein angenehmer Klang. Lichteffekte sind ganz cool, allerdings auch leichtes Rauschen der Lautsprecher
Date published: 2018-12-20
Rated 5 out of 5 by from 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.
Date published: 2019-02-05
Rated 5 out of 5 by from 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.
Date published: 2019-02-25
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Kann man die Partybox mit der JBL Connect app nutzen, um die Lichteffekte z.b. einzustellen

Asked by: Hhhj
Vielen Dank für die Anfrage. Leider ist die PartyBox mit der JBL Connect App nicht kompatibel. Die Lichteffekte lassen sich ausschließlich über die Tasten der PartyBox steuern. Vielen Dank.
Answered by: MichaG
Date published: 2019-05-15

Voinko liittää yhteen PartyBox 200:n ja PartyBox 300:n?

Asked by: Janetzki
Hi Janetzki. I am sorry, but we cannot support in Finnish yet, so this will have to be in English. You ask if you can connect Partybox 200 and 300. Yes you can, with wireless TWS function and with cabled connection. Cabled connection is easy, and it is an option you can choose. But you can use the True Wireless Stereo function to play on one 200 and one 300 as well, no problem. I hope this helps you.
Answered by: Bo Harman
Date published: 2019-05-15

Kann mann auch mehr als 2 Boxen zusammen anschließen also 3 oder 4 hintereinander?

Asked by: Sven aka Perry
Vielen Dank für die Anfrage. Leider geht das nicht, es sind immer nur maximal 2 Lautsprecher vorgesehen. Vielen Dank.
Answered by: MichaG
Date published: 2019-05-13

Does the battery gets damaged if speaker is plugged in for most of the time? Since tickle charge is not good but every battery also has certain amount of charging cycles which way would it last longer?

Asked by: Krustins
An average Lithium-ion battery would survive around 500~1,500 charging cycles. Now, according to techs out there who've tested it, it is not ideal to use it from 100-0 in one go, this would degrade the battery's life span badly. There is no harm in keeping the speaker plugged in, what is harmful, is heat. Keeping it plugged in while using it might cause the battery to heat up to such degree that it would also degrade your battery. With these things in mind, what we can advise is - it is okay to leave it plugged in, the charger and the batteries right now are smarter than we think, there is no such thing now as "overcharging". But since heat is something we would like to avoid, unplug it when you use it and charge the speaker a little every time you have a chance to. Lithium-ions takes charge better when done on small frequent charges than going from 0-100. And last note, NEVER flat your battery out.
Answered by: Mario at Customer service
Date published: 2019-05-11

Går det att använda JBL Connect appen till PartyBox 300?

Asked by: ksp87
Tack för din fråga. Tyvärr så går det inte att använda JBL Connect appen till en Partybox 300 eftersom den inte har JBL Connect funktionen utan sammankopplas med en funktion som heter True Wireless Stereo.
Answered by: Julia B, Customer Support
Date published: 2019-05-09

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
No, I connected the Boombox to it and the PB overpowers it, but I got somewhat better treble response that the PB lacks
Answered by: Cicone25
Date published: 2019-05-08

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

Asked by: Levoss
You can, just be sure to use the RCA cables, unless it won't work
Answered by: Cicone25
Date published: 2019-05-08

Hej jbl är påväg att köpa en partybox men undrar vad det är för skillnad på 300 och 200 skulle tack

Asked by: Customer99999999999999999
Tack för din fråga. Skillnaden på en Partybox 200 och Partybox 300 är att en Partybox 300 har ett batteri som håller ca 18 timmar medan en Partybox 200 inte har något batteri och måste därför alltid vara inkopplad. 
Answered by: Julia B, Customer Support
Date published: 2019-05-04
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