Very good purchase, I had the speaker somewhere around 3 years, it was really excellent. Impressive build quality, it fell down many times and once from the motorcycle while I was going at sixty and beyond, besides a few scratches and dents, it didn't suffer anything. Also, I took it to the beach in places with humidity, dust, everything, and after two years, I think the sound clarity decreased a bit at high volume, but that was after real mistreatment. I was completely satisfied with the sound, not incredible volume, but for its price, very decent and overall clean sound and very decent bass. The battery is impressive, I would forget to charge it, really, I would charge it almost every week with daily use of four to five hours, I don't know if it lasts 24 hours to the second, I never checked, but with a full charge, there is no chance that the battery will run out in a day, even if you use it constantly. Some observations are that the battery indicator drops by 10%, which confused me a bit at first (I don't know if it applies to all speakers), and also it starts to fade at around 15-20% if I remember correctly, and then you can turn it on and off after a few minutes, again three or four times.