JBL PartyBox 300 Review


JBL is one of the few audio brands that is currently under the Harman group. They’re also one of the names that are owned by Samsung; and just recently, they announced their cool and unique Bluetooth speakers designed for parties. It’s something that is quite reminiscent of something that Sony already has.

We’re talking about the JBL PartyBox 300 – a huge speaker that sports its own light shows while blasting out all your favourite tunes and beats. It’s definitely something that would make your party one of the best and hottest in town.

The PartyBox 300 come with different features such as the three light show options: specifically the Pulse, Meter, and Party modes. It also sports guitar and mic inputs, USB playback, Bluetooth connectivity, plus RCA or TWS support.

Generally, the PartyBox 300 from JBL is a Bluetooth speaker that looks just like a boom box that comes with two LED ring lights. The speaker also comes with handles to make it easier and quicker for you to bring it around. It is a cool speaker since you can link this to your smartphone or any other device using the Bluetooth; plus, you’ll also get to program a list from your USB thumb drive. An extra feature that can be quite convenient is the fact that it comes with inputs for your mic and guitar which is great.

Sounds like something you’d need to get your party started? Then read on and learn more about the JBL PartyBox 300 and see if it’s something that’s worth purchasing.

JBL PartyBox 300 Review – What’s in the Box?

When we got our hands on the PartyBox 300, it came in a strong and durable cardboard box that is sure to protect the speaker from any unnecessary damages.

Lengthwise, the front of the box displays an image of the speakers, the company’s name on the upper left corner, and the speaker model at the top right corner. Below the image is a tagline that states “Powerful Bass Boost”, then below this are a couple more details about the PartyBox 300.

The lower left portion of the package also informs you that the speaker is Bluetooth compatible. While the sides display other details and information about it. For the back part, you’ll find a full image of people surrounding a person who’s breakdancing, and with the JBL PartyBox 300 next to him. You’ll also find the same tagline on this part of the box, plus some other features of the speaker.

When you open the box, the first thing you’ll find is the speaker itself that is covered with a white plastic wrap to protect it while being transported to your home. There are also thick pieces of Styrofoams on each side of the speaker to ensure that it won’t move about while also in transit.

Aside from the speaker, the package also comes with a 12-Volt DC cable, a safety sheet, a warranty card, the quick-start guide, and a AC power code that varies by the region.

The Product

JBL PartyBox 300 Review

The JBL PartyBox 300 is a powerful and durable party speaker that sports the excellent sound quality of the company. Not only that, but it also comes with vivid lighting effects which makes it a really cool and unique speaker. This is all thanks to the rechargeable battery, as well as a 12-Volt DC input, allowing you to take the party with you everywhere.

The PartyBox 300 from JBL has a ton of useful and cool features that makes it a really ideal speaker. The Bluetooth speaker is one of its best aspects, but it also comes with a USB port if you prefer linking your tunes directly. You’ll get a whole lot of options when it comes to how you want to get your favorite music out there.

You’ll just need to plug the guitar or microphone to the speaker, then get on stage or stream your playlist from a USB stick or via Bluetooth. Another thing you can do is wirelessly link two PartyBox speakers using the TWS speaker, or the wired option from a single RCA output to an RCA input.

The speaker is also perfect for buskers; plus, it also comes with nice, colorful strobe LED lights that you can freely set to your preference. This a true must for all party lovers and goers, or if you’re someone who enjoys spicing and heating up your performance.

At the top, you will see a control panel that features different buttons: these include the power button, play / pause, Bluetooth pairing, bass boost, and the volume buttons. There’s also the presence of a button for activating or disabling the LED lights on the speaker. There are only two accessories that come with the PartyBox 300, and these are the standard looking power cable that is as long as your common connector for large speakers, plus a heavy duty orange-colored car charger that is quite longer than we expected.

Its input panel at the back portion of the PartyBox 300 houses different connections for the USB, RCA, the 3.5 millimeter AUX, and also the dedicated guitar and microphone inputs, each having their own gain knobs right above them. Both of the inputs have a measurement of a quarter-inch, so if you’re planning to utilize an XLR mic with it, you will need an adapter. There is also the presence of an RCA output, and also a right / left channel button used for pairing up to a total of two of the speakers.

The PartyBox 300 from JBL is built-in with carrying handles which are really convenient since these help make things easier for you to move the speaker around. It has an 18-hour battery too, allowing you to utilize the PartyBox 300 anytime, anywhere.

Product Features

High-Quality Audio

The PartyBox 300 features three 2.5-inch tweeters and two 6.5-inch woofers. These come with True Wireless Stereo functionality to allow everyone to link two PartyBox speakers simultaneously. These support 12-Volt DC input to attach them to external rechargeable battery.

Ideal for Parties

The speakers of the PartyBox 300 have integrated lights. It has three options – Party, Pulse, and Meter – to perfectly set the party mood. This specific model also features inputs for guitars and microphones as well. With that, you can connect microphones and guitars to make karaoke nights more fun and enjoyable.

Bluetooth Connectivity

This party speaker works with Bluetooth so you can wirelessly stream high-quality music from your mobile devices. This comes with a 3.5-millimeter aux-in port and a USB port for connectivity. Aside from that, the PartyBox300 also has a special feature that allows you to pre-program these before any event.You can also connect the speakers via Bluetooth using the True Wireless Stereo Technology.

Long-Lasting Battery

The capacity of the battery of PartyBox 300 from JBL are rated to last up to 18 hours on a single charge.

USB Playback and Charging

You can preset your favorite playlist loaded on your USB thumb drive before your party begins. With its USB port, you can charge your compatible device for more convenience.

Bass Boost

The bass boost function lets you increase the pinch to your party music. The PartyBox 300 offers two levels of bass boost.


The JBL PartyBox 300 is a 10,000 mAh battery that promises a total of 18 hours of continuous battery life. It has two 6.5-inch woofers together with three 2.5-inch tweeters, giving you a frequency response of 45Hz to 20kHz. Just like we mentioned earlier, the PartyBox 300 supports RCA, the USB port, microphone & guitar inputs, as well as Bluetooth.

Strobes and lights fill the JBL speaker, and also the front casing, allowing you to set this to Pulse, Party, or Meter mode to get the different effects that you want. The speaker has power inputs of 100 to 240 Volts AC & 12 Volts DC.

For its input terminals, these include the USB port, RCA L/R, mic / guitar plus volume controls, and aux in. The PartyBox 300 also has a 45 – 20,000 Hz frequency response which is something really good. About its wireless streaming, it actually has support for both tablet and smartphone; and as for its true wireless stereo, you’ll get to link up to two devices via Bluetooth to make your party even better.

This PartyBox 300 speaker from JBL makes use of a lithium-ion 74.88 Wh battery which is equivalent to 7.2 Volts / 1,040 mAh. The total battery charge time of the speaker runs up to five hours, and its overall playtime will last you until 18 hours.

Lastly, the PartyBox 300 measures 310 x 320 x 690 millimeters (W x D x H), and weighs a total of 35 pounds. JBL also made sure that it included a one year warranty for their PartyBox 300.

Using the Product

When it comes to the speaker’s performance, the JBL PartyBox 300 is simply amazing. Even if you don’t set it up with bass boost, the music that comes out of it already sounds clean and great. But when you decide to add on the bass boost, you’ll sure have a blasting and booming party all throughout. We love the fact that JBL PartyBox 300 isn’t just all about listening to loud and clear music, everyone will surely get to feel the tunes as well.

Now if you plan to take your favorite tunes to the next level, you can choose to have another PartyBox 300 in the party which sure is a great and very smart option. The combined speakers can easily be paired to amplify and boost your music further, and that’s what we all want when listening to audio.

One of the people here plays the guitar and bass, and knowing that this speaker from JBL comes with a guitar jack, only means that you can completely use it to rock out with the best guitar riffs or deep cool bass lines. Setting it up? No worries. It’s all a breeze to complete. Thing is, don’t expect to have a ton of options to choose from unless you have a pedal board with you. Without this, what you’ll get is your usual acoustic guitar play, and this isn’t even a bad option at all. Just add the microphone jack to it, then you and a friend can perform for a party or any crowd.

When it comes to the sound quality, we have to stress that it sounds excellent. Our playlist consists of a variety of genres, and everything that we played sounded great. With a 250 Watts of pure power. Even when we were outside, we received high quality sounds and the boost function really helped a lot, especially the deep bass notes that give more power to the tunes.

We really loved how the PartyBox 300 looked when the integrated lighting effects came up. The lights flashed in time to every single beat and it really added to the party atmosphere. It was really fun and enjoyable, so we’re definitely giving this speaker two thumbs up.

Another thing that we liked about the PartyBox 300 was that when one of our smartphone’s battery was draining out, we just plugged it into the speaker’s USB port and quite surprisingly, the music still continued to play while the phone charged without any problems.

All in all, the JBL PartyBox 300 was great: its exterior was perfect, the LED lights were cool, the quality of the music was excellent, and our overall experience with the speaker was perfect. So we’re definitely going to give JBL and their speaker two solid thumbs up for how well it performed.


All in all, the PartyBox 300 frm JBL is  great audio solution for your listening enjoyment. It offers aesthetics and delivers excellent performance as well as connectivity. It’s bigger & better, and we think that this is the ultimate Bluetooth speaker in the market today. It brings your party music to the next level and whether you’re an audiophile or not, you’ll definitely appreciate this speaker.

If you’re looking for powerful portable speakers that provides high-quality audio, we highly recommend the JBL PartyBox 300.

Where to Buy

If you want your own PartyBox 300 speakers from JBL, you can purchase this from the company’s official website.