I've had the speaker 3-4 days now and I'm loving it! its a great looking speaker, and it sounds good too. it did take a day or two to get to the best sound quality. It does suffer from Bluetooth latency, so if you try to synchronize the words to a video you'll get tongue twisted LOL but that's common to all bluetooth, it's not unique to this product, and I knew that going in. You should too.the manufacturer warns us to only use the power supply shipped with the unit because it has electrical current noise protection. some reviewers mentioned the buzzing sound. the speaker sounded good up near maximum volume, then it sounded like the internal amplifer was clipping. I replaced the 5 watt ac to usb power supply with a 10 watt unit and now it rocks ie. more volume less clipping-great for a desktop, don't think you're gonna run a rave off of it LOL. but if you do that do it at your own risk neither the mfg nor myself will accept responsibility for that. I got lucky, the 10 wattt power supply I had didn't add any noise to the speaker, yours might. and if you're really unlucky you might let the magic smoke out of it-so far, I haven't.