Great speaker the sound quality on this is very good and clear has buttons on top to turn the speaker up or down or can do it from whatever device your playing music off. The size of speaker isn't to big and isnt really heavy so great to take places this speaker also has radio on it which is easy to work and a microphone on but have not used that. The speaker lasts about 8hrs after charging and comes with charging adapters takes about an hour to fully charge. I've tried a few speakers in the past and this is one of the best the bass on the speaker is good and don't crackle.