Customer Ratings & Reviews

Wish you can connect it with other JBL Bluetooth speakers with the jbl connect button (wirelessly) . Love this produce it has rich/heavy BASS. Also i wish the volume could be higher with the Bass.

Sounds great looks good. Keep in mind this is the older model and is missing some upgraded features.

I like the sound quality of this speaker. Has good bass. I’d say the only negative is it’s a little on the heavy side. It’s called a portable speaker but I’m not sure how many times I’ll be moving it around, as for me it’s not that easily portable that I was thinking it would have been. Was thinking it would have been easy to take and travel around with. Other than that it sounds good! I enjoy the lights on it too. I bought my kids a microphone and they love to sing karaoke on it

Great Speaker for a portable speaker it is loud. Good for people that want to take music with bass on the go. For a plug in stationary speaker it could be a little louder. But why buy a portable speaker it you plan on plugging it in. In the future I plan to buy another on so that they can work in left and right speaker channels. So I am happy with the speaker

For my house and on the go needs this speaker hit the mark. Very basic Plug n play and well within my price range for home and road worthy speaker. Lights are cool but the solid JBL reliability and sound quality is what I like best.

Customer service at Best Buy and Downey was great .The JBL party box 300 is a good purchase. It is heavy to move around but once you get it to the destination of choice. Everyone enjoys the great sound that comes out . I have had friends bring their portable speakers and end up putting them away because they rather hear the JBL party box 300 instead.

Unfortunately I bought the product as a gift for my husband and he decided that it was too big for him and modern looking. In my opinion this Party Box 300 is a powerhouse! Great sound. The only thing I need to say is that it is too heavy for a "portable" equipment.

Been using this as a stereo for the big rig and to have tunes at the local race track. The audio sounds great all the way up to max and the lower hz response is spectacular and beat my expectations. I listen to everything from Afrika Bambaataa to Cattle Decapitation and it all sounds great! I did feel that this unit was pricey even on sale but I am very happy with the quality. It is hefty. You will want to use two hands loading this into a tall vehicle! Build is solid, no rattles. Disappointed in that the JBL apps I found in the play store do not work with this model. I was hoping to play with some EQ and adjust lighting effects. That might be a feature on whatever model replaces the 300 series. I was worried at first that this thing was gonna pop a fuse from the power point in my truck when I saw how massive the orange 12v cable was! Battery life is good enough for a track day at full volume.

Speaker is awesome for what I paid which was 435 after tax. but I wouldn't pay 500+ for this. not loud enough to be this price in my opinion. but for what I got it for its almost perfect. insane bass and sound quality but needs to be a bit louder.

This thing sounds good from low volume all the way to when its cranked. It will beat almost any speaker out there, and trust me I know because we use it to tail gate and we never hear any other peoples music except for ours. Bigger is better with this JBL PartyBox 300!

The speaker itself is AMAZING!!!! It has great sound and as loud as I want it to be! However...... I purchased a second one after I found out that you can pair two of them to have a left and right speaker. At first, it sounded good. Suddenly, this strange sound like an interruption to the Bluetooth connection would happen. It sounded horrible, like someone scratching a chalkboard. After trying everything to make it stop, I just returned the second speaker. Honestly, I think one speaker sounds better than two anyway. If you’re not planning on pairing two of these speakers, you will be fine. I have had no problems at all with one speaker.

Beautiful speakers and the sound its amazing, the vocal are clear and you can pump up the bass plus it got some cool lights.

This speaker hands down is the best speaker I have owned. I've taking it to the beach, pool parties and anywhere you can imagine. It has never let me down and the battery life is great.

Great party box for the price. Famous JBL Sound clear and crisp. Nice colors popping as the music plays. Battery capacity a must have.

Large speaker for sure! Sound is good so far, but not “really” a solid bass boost in my opinion. The button can be clicked on or off for that. That said, when it gets warmer out, it will be outside with me on the patio. Perhaps the bass boost will sound a bit different, maybe better, outside. Have a few JBL products, so it is a good brand and I have been pleased with the smaller JBL speakers I have. I’m sure this one will not disappoint! Cool lighting effects as well.

My son wanted this for his beach trip. He hides it from me because I like to use it around the yard when I am gardening.

GREAT SPEAKER!! Absolutely met all of my needs and expectation, with amazing bass, perfect for filling rooms of any size. With the ability to link multiple using TWS and an RCA cable, you can link as many as you have, which provides for some real forest-filling sounds. The only downsides are weight (clocking in at 35 pounds) and non-waterproof...both of which are fixed in the partybox 310 — for an extra 100-200 dollars however.

Pretty good bass and good voice quality. Overall sound quality is excellent!

The sound its great colors lighting good and the price its fabulous

This speaker is heavy but delivers great sound! At full blast - battery lasts approximately 4 hours. The biggest drawback is that I put my music on a USB stick but the unit has no controls to cue music. I also have the Sony speaker and you can download an app that allows you to skip and repeat tracks. All that said - this is a better sounding product and the light array is better than the songs too.