Just a word of caution: do not leave headphones in a hot car for any reason. I had my Liberty air inside its case and I had left it in my car for a day, when I took them out, they were all sticky and the cord was slimy and sit open when I unraveled them.
As seen below
Now it wasnt a particularly hot day, maybe around 80 degrees or so and this happened. Up until this they have worked flawlessly, and now because they were a beta unit I am out a pair of great sounding wireless earbuds. So just let this serve as a precaution not to leave any electronics in a car