So now when I buy new Keen shoes, I also have to invest in their K-20 or K-30 insoles. I?ve lost it like three times. I have used them daily for the last week and only charged once. comfortable running and jogging. Not sure if it?s headset or my phone/ laptop issue. Soooo comfortable (for heels) and the perfect height for someone like me who tends to wobble in high heels. I havent used the FM radio function before, but its nice that they have it. If its that far off at 90 degrees theres every reason to expect it to be off an equal amount in each of the other detents. And the case is not hard enough to protect the headphones. It?s great to save money and resources, but they basically took a 8 1/2 x 11 book and shrank it to a 2 x 3.