JBL Partybox 310 - Portable Party Speaker with Long Lasting Battery, Powerful JBL Sound and Exciting Light Show,Black

Sound quality, CHECK! Portability, CHECK! Battery operated, CHECK! Functionality, CHECK! Quality, CHECK! I bought this 2 years ago. My friends and family bought the same after experiencing it in my party. This is loud, neighbor called the cops for me to lower it down. Ey, it's my birthday so yeah it was loud. Used it for karaoke and music. Nice to watch a movie with it too!

I absolutely love my JBL PartyBox speaker! The sound quality is amazing—super loud, clear, and powerful with great bass. We use it for Jeep parades, house parties, and get-togethers, and it never disappoints. It easily fills the space and keeps the energy going. It’s well made, easy to use, and the volume is impressive without losing sound quality. Whether we’re outside cruising or entertaining at home, this speaker is perfect. I get so many compliments every time we use it. Highly recommend—worth every penny. Love love love! 🎶🔊

The JBL PartyBox delivers powerful sound with deep bass and clear audio. It’s easy to connect via Bluetooth, portable, and perfect for parties. The LED lights add a fun vibe, and the battery lasts for hours. A solid choice for great sound anywhere.

Sound Quality - Sounds just as you'd like it to, and more. What is more, you may ask? Simply put: I was hearing instruments in songs that I've never heard before when using car speakers, phone speakers, or AirPods. Specifically higher pitched noises. The sound is crisp, and the bass is plentiful (with the option to crank it of course). Battery Life - Out of the box, using for 4 hours with my iPhone at volume 10 out of 16 and the light show on, the percentage ended at 77%. That is pretty on par with the description of the battery life that JBL gives you. Of course it will degrade over time, but you can't beat 3.5 hour charge time for ~16 hour battery life. Even if the battery life drops to 12 hours, that is still a big battery. Portability - Yes. I am a 136lb 5' 8" shrimp, and I can tote this speaker like nobody's business. There is a suitcase-style retractable handle (with a soft grip) in addition to a static/firm/built in handle (with a soft grip) that you can carry sideways with another built in handle near the wheels (no soft grip). Carrying it is easy and comfortable. Wheeling it around is easy thanks to the soft wheels that it bears. I wouldnt recommend *carrying* it with the suitcase handle. Maybe it will break. Maybe not. Don't find out. (You can definitely wheel it with the handle). The manual says to wheel at a 60* angle maximum, but this thing can wheel at pretty much whatever you are comfortable with *without scratching the ground*. Visuals - It looks clean. Classic black and orange JBL scheme. The light show is fantastic, with the white strobes flashing to the bass and the circular leds flashing to everything else (and the bass). You can also pick from a variety of light shows from the JBL app. DJ Controls - I have no use for them as I intend to use this simply as a speaker that is loud. They work as you'd expect, and you can load more from the JBL app. The equalizer is a fun touch. "But our phones have equalizers too..." yeah except you can turn on Echo for the speaker, which, you guessed it, is a smaller echo of the song. You can control the intensity of the echo. In a party setting, I could only imagine this would pop off with Karaoke. In addition, Karaoke gutair and mic has their own set of EQ knobs for a very precise tune. Volume - It's loud. It's so loud that having the volume at 8 of 16 on my iPhone with bass boost 1 or 2 activated would hurt my ears after being 4 feet away from it while it was pointed away from me and on the opposite side of a wall. 12 of 16 and I could hear it all the way across the Burger King that I work at, and I could faintly hear music all the way at the dumpsters outside (about 130 feet away. Keep in mind the speaker was inside and I was outside). This is probably the loudest speaker I've heard in a long time, if not, the loudest I've ever heard. And, yea, it still sounds nice from far away. Cons - You can seriously hurt you ears with this speaker. Of course, you'd have to have prolonged exposure at max settings. But still, be wary. This isn't a true con since earbuds can also damage your ears. It's just more of a warning to those of y'all that haven't had a hot and heavy speaker before that this is big Bertha but only breakfast. Cons - The speaker can be oriented in 3 ways: standing, on one side, or on the other side. The speaker is not meant to have the front facing up. Not a big deal Cons - There really is nothing major to complain about except the price, but trust me, you get what you pay for.

Very happy with the quality and sound of this speaker. Love that the microphone jacks are powered to use a wireless drum mic. So much better quality than the cheap speakers and very loud but clear. Expensive but worth it.

I bought this for outdoor use - taking to baseball tournaments, patio parties, picnics, etc. I have not tried using it for any professional purpose (DJ, live shows, karaoke). I have been using it for a few months now. Pros: -The sound on the speaker is amazing. At max volume, I can flood an entire baseball field with "Green Onions" and have gotten tons of compliments on how great it sounds by people at the ballpark. The bass can be tweaked in the app with the touch of a button, and I love switching between deep and punchy depending on the song. -The speaker is so far holding up very well. I am putting some miles on the handle, wheels, and lugging it over all kinds of terrain like rocky parking lots, grassy fields, dusty dirt paths. Is it getting kinda dirty? Yeah. Has it come down with a few scratches? Sure. But all in all, it is holding up better than I expected with all the bumps and jiggling. I haven't dealt with moisture yet, but it is supposed to be able to withstand any thing besides being submerged (not an issue on solid ground, typically). -The battery life is great. I can charge it up overnight and take it to the park for the next couple of days playing near max volume and I have yet to run out of juice with it. Stated battery life is 18 hours and I have tested up to ~10 without issue. -Comes with a USB port that you can use to charge up your phone or other portable devices with the speaker's battery. It's not fast charging capable, but it will keep your device from draining and boost it slowly over time if you turn the screen off. It's a small detail but I find it very convenient since without my phone the speaker is a giant paperweight. -The lights are cool, but I have yet to really use them. They are bright enough to be visible during the day and are a cool feature, but I just haven't found myself using them much. Cons -Thing is a bit heavy. Not too heavy so that my wife can't lift it and lug it around, but it certainly dampens it's portability. 10 lbs less somehow and this thing would be amazingly portable. Unless you're taking it over smooth, even ground you will be a bit tired if you have to take it further than 50-100 yards. So, not the speaker to take on a hike - definitely the speaker to take car camping. I would have liked to see slightly wider wheels on it, as the roller-blade like wheels on it now can get be unsteady when hitting bumps in a sidewalk and cause the speaker to start rocking - when this happens just stop, let it settle, and start moving forward again. Otherwise, the rocking momentum will build and cause it to try and tip over. I think fatter wheels would give it more stability when being pulled by the telescoping handle. -Some folks may not like the scratches it will take in moving it around everywhere. I see these as a patina from being put to good use - as long as it still works fine and the handle/wheels hold up, I do not mind some scratches or discoloration. I'm using it outdoors and taking it to so many places that I think expecting something to come out looking pristine is unreasonable. -One feature I wish that it had (and maybe could be added to the app in a future update) is a fade in/fade out button for when I'm transitioning songs (or if I was making an announcement and needed a short break in the song). An abrupt pause and start can be distracting to listeners, and it would be cool if I could just push a button in the app and it would automatically start fading out over 5-10 seconds, then start fading up. I can do this manually with my volume buttons but I usually don't because it is clunky. Overall, great bluetooth speaker. Well-designed, looks great, and I have yet to take it somewhere without drawing a compliment. People ask where I got it, what brand it is ("Ohhhh yeah JBL, they are really nice"), etc. It is a bit of an investment for the price, but I am using it weekly and expect to continue using it for years to come. After my experience using the speaker, my opinion is that the price is justified by the quality and functionality.

If you’re looking for a speaker that brings serious energy, amazing sound, and unbeatable vibes, the JBL PartyBox 310 is it. This thing is an absolute beast—in the best way possible. The sound is crisp, powerful, and the bass hits hard without ever distorting, even at max volume. It easily fills a backyard, beach, or big living room with rich audio. One of the best parts? The built-in light show. The LED lights sync with the beat and instantly turn any space into a full-blown dance floor. Plus, it’s super customizable if you want to tweak the effects. It’s like having a DJ light setup built right in. The battery life is also impressive—I’ve gotten close to 18 hours of playback on a single charge, and it even has wheels and a handle, which makes moving it around effortless (a huge plus for such a powerful speaker). Bluetooth connection is strong and reliable, and the karaoke features (mic & guitar inputs) make this the perfect speaker for parties, events, or just epic nights at home.

This thing really delivers! We bought it as a portable sound system for my wife's 120-voice choir. They often perform outdoors, sometimes in parades, so a lot of sound is required. The sound quality is excellent - even at the highest volumes. No detectable distortion. The battery seems go last forever. The one downside: it's VERY unstable when you roll it. The wheels (which are like inline skate wheels) are too close together, and the unit starts to rock from side to side. It will tip over if you don't stop walking, When we do parades we pull it in a wagon. The instability is a real pain. I'm sorry to give it 4 stars because the quality of the unit is otherwise excellent!