A:Answer See my review. Ear fit is great IMO. They have a little rubber gizmo that keeps them nicely in place (although the same gizmo does make it a little more difficult to get them correctly into the case. Anyway, it took me a few days to figure out the best way to insert them, but since then they don't budge when they're in my ear. Battery life is OK. If you run noise cancelling, it sucks the battery life, so I'd recommend using noise cancelling selectively if you want longer battery life. As for connectivity, it's been perfect. They pair easily and stay paired. And good range.