I ordered one in July because of the good review. The first arrived at late July. The manual says charging would take upto 4 hours, but the charging LED went off after 30 minutes. I tried a few more times, but same problem occured: the battery won't hold any charge. In fact, I was never able to turn it on.At that time I thought it might be just my bad luck. So the next day I called Amazon and asked for a replacement. One week later I received the second one. Then I tried to charge the battery, same problem occured once: the orange LED went off after about 30 minutes! I unplugged the cable and replugged it again, yet this time the LED was still on after 6 hours. Later I stopped charging and turned it on. It can be used, but my friends said the sound was a little bit noisy. Moreover, the battery drained after it is used for about one hour... It left me no choice but to return it.