Disclaimer: I received the AfterShokz Trekz Airto review as part of being a BibRave Pro. Learn more about becoming a BibRave Pro (ambassador), and check out BibRave.com to review find and write race reviews! Have you ever run with one headphone out so you can still hear what’s going on around you as you run? … More Why I was impressed by the AfterShokz Trekz Air