How long does a full charge last? Our current units play 16 hours of regular audio, or 10 hours lights on max brightness. Have more questions? Submit a request 1 Comments Date Votes 1 digidreamer March 31, 2017 01:23 Is there any way to track the battery level of the headphones, other than having to guess? Would be great if the battery level showed in the app so I'm not caught with a dead battery. Please sign in to leave a comment.