I hadn’t been to the gym in six months when I dragged myself through the doors a few months ago—which meant I hadn’t opened my gym bag in just as long. I assumed my gym headphones would be dead as a doornail, but when I flipped open the Soundcore Sport X10’s case, all three battery indicators lit up. When I put them in my ears, the robotic voice announced: Battery full! There I was, back in business and ready to be less sad on the treadmill. Though I’ve had my original pair of X10…

