People the Airs I received are the new version. I have two of the originals because my first one would only get about 50 minutes per charge and had dropouts. I was the first to report these issues to Bob so he sent my another set which would get about 70 minutes but still had the dropouts. In the mean time I send my Hunters in because an issue they had and recently Bob emailed me letting me know my Hunters were on the way back along with the new version of the Airs. I have a couple other wireless bluetooth IEM's that get better battery life but they're substantially larger in size. Someone else mentioned another one so I looked at it on Amazon and it too is much bigger than the Airs. These things are extremely small for bluetooth IEM's and for me 2 hours of use time per charge is fine and I didn't expect much more because there just isn't enough room in them for a larger battery.
And when did you receive them exactly?