A:AnswerThe battery life is really good I work 8 hours and typically have them on for the whole day. The battery gets low about 5 hours in then I just charve them for 20 mins and they are good to go the rest of the day. Noise canceling works better with steady noise. While it will make things quiter, power tools and construction related noise is still very noticeable and this will not replace propper PPE
