Primarily designed for running, cycling, climbing and outdoor sports, the Aftershokz Aeropex Wireless Bluetooth Headphones give you comfort and clarity, while keeping you in touch with your surroundings.Stay safe when you're out on a run or on your bike. Rather than using earbuds, these headphones use unique technology that sends vibrations through your cheekbones so you can listen to music without blocking up your ears. And since your ears aren't covered, you can still hear what's happening around you.Fitting nicely over your ears, the Aeropex headphones give you a comfortable listening experience - even in the middle of your workout.They're lightweight, waterproof and have an 8-hour battery life, so you can wear them for hours without being limited by the weather.