1.<Open Ear Design ---Safe> Earbuds that don't go in your ear. In contrast to in-ear Earbuds, the Open ear design of the sport headphones can help you always feel the surrounding environment. Whether you are cycling, walking, running, in the Gym, driving or riding with the open ear earbuds, you can always pay attention to the surrounding environment, which is very . 2.< & Stable Fit> Our Sport Over The Ear Earbuds are lighter, made of premium soft silicone material, keeping running relaxed. The open ear design helps you achieve a painless and harmless experience as the open ear headphones with mic is no need to plug into the ear canal. With ergonomic surround and streamlined sinking design, the outside the ear headphones make you feel to wear. 3.<5 - 6 Hours Play> Open air earbuds, Bone air conduction headphones with USB charging and include 400mAh battery, enjoy 5 - 6 hours of non-stop music or podcasts. Outside the ear headphones built-in microphone achieves clearer phone call. 4.< and Sweatproof> Out of ear earbuds with professional-grade waterproof and sweatproof and fully enclosed sound cavity to prevent daily sweat and rain from infiltration. Ergonomic design, comfortable and stable to wear, whether running, jumping or other outside movements, the bluetooth earbuds headphones not in ear are still worn stably.