I’m a truck driver and I use my speakers all the time . I stopped using them before the update because they would go in and out . I just updated and I do see improvement on the sync, before the speakers would go out and come back on but would not be in sync with the picture. That problem looks like it is fixed. The problem now is they still go in and out , I use them with my iPad and I really love the speakers. I hope the developers can get this together and as the updates come out I will give my opinion on them . Also note they do not stay synced when you play them together. One will drop out and one will play on and off.I give two stars for the small update. Update august 5 . I will give five stars now because I haven’t had any problems with the connection for the last month. The app is working fine at this time.

So I’ve had the speaker for about 2 years now and it by far is one of the best speakers I’ve ever used. But the only reason I’m giving it 4 stars instead of 5 is because it’s had a bunch of problems with charging, EVEN after I replaced the battery a couple days later it started doing the exact same thing it was doing before I replaced it. Now it’s working perfectly fine all the sudden and it’s only staying “charged” on the 1 out of 5 of the dots for charging and that’s what it was doing before I replaced it and I go on this app and it says it’s that low. Idk I take super good care of it always have and it’s still took a weird turn and idk if two years would be long enough for it to have anything happen to it but who knows. Please help idk if it needs an update but if so please send that haha. Thank you that’s my review. Send me a new JBL charge 4 or upgrade me to a charge 5 or trade mine in and upgrade me to the charge 5 and I’ll raise my rating but idk if it’s that worth the extra stars.

This is a very streamlined app but for the most part does what you need it to do. I gave it 4 stars because I am using it with the boombox 3 and it’s EQ is only 3 band. For the price of the boombox 3 JBL should have at least a 5 band EQ and the ability to save presets. Tribit has this on there stormbox and i think it is a 9 band EQ. EQ and volume is smooth, something that the JBL Pro Audio app LACKS terribly. Although this has a premium feel there are other companies out there that have apps that are more functional like Tribit. I prefer the JBL boombox over the Tribit stormbox but the app is better on the Tribit. The sound of the Stormbox is not to far behind the boombox 3 and if money’s a factor people will pick the Tribit. Just something for JBL to think about when the next update their app and I need to pay attention to all the hungry companies out there that are at the hills so they realize they need to be on top of things because they’re going to lose business to other companies if they do not.

After reading through the reviews, there is a guy down the thread that explained how JBL support helped correct the issue. Don’t follow the on-screen instructions completely. Only connect a single speaker via Bluetooth to your device. Then use the app to link up other speakers via partyboost (connect feature). Once they are finished linking together via the connect app (REMEMBER ONLY ONE SPEAKER IS TO BE CONNECTED THROUGH BLUETOOTH), the sound issues will disappear. I have had nothing except for flawless crystal clear sound while streaming ever since! Thank you to that guy for posting the solution. I was going insane and was furious before that. Good luck whoever takes the time to read this.