Open Design---Safe Open-ear headphones, compared with in-ear earbuds, the open design of the outer earbuds can help you always feel the surrounding environment. Whether you are cycling, walking, running, gym, driving or riding with open earbuds, you can always pay attention to the surrounding environment, which is very safe.5-6 hours of playback wireless open earbuds, up to 30 hours combined with the charging box, open ear bone conduction headphones USB charging and contains 400mAh battery, enjoy 5-6 hours of uninterrupted music or podcasts, Bluetooth earphones open ear outer ear headphones open ear with microphone built-in microphone for clearer phone calls.Lightweight and stable fit Our sports open earbuds are lighter in weight and made of high-quality soft silicone material, allowing you to stay relaxed while running, and the open ear design helps you achieve painless and harmless, because the open ear headphones with microphone do not need to be inserted into the ear canal. With ergonomic surround sound and streamlined sinking design, open ear earbuds wireless bluetooth outer ear earbuds allow you to wear them casually.Waterproof and sweatproof open earphones wireless Bluetooth adopt professional-grade waterproof and sweatproof and fully enclosed sound cavity to prevent daily sweat and rain from penetrating. Ergonomic design, comfortable and stable to wear, whether running, jumping or other outdoor sports, the non-in-ear Bluetooth earbuds are still stable to wear.High-quality sound quality and safety guarantee This open earbud bone conduction earphone uses patented speaker and sound cavity technology to upgrade the sound quality, effectively reduce sound leakage, protect your privacy, and bring you high-quality audio enjoyment. Whale cavity stereo surround sound, immersive music enjoyment. Perfect sports companion.