1.[Open Ear Earbuds]The Open ear design of the sport headphones can help you always feel the surrounding environment. Whether you are cycling, walking, running, Gym, driving or riding with the open ear earbuds, you can always pay attention to the surrounding environment, which is very . 2.[Comfortable & Headphones]Wireless Ear Hanging Bluetooth Headset are so light only 0.3oz that you'll forget they're there after wearing them for long time. The open ear earbuds wireless without restraint, skin-friendly and non-allergic ABS material is more comfortable to wear. Air-bone conduction headphones make you a burden- wearing. 3.[ and Sweatproof]Open ear earbuds with professional-grade waterproof 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 ourside movements, the earphones are still worn stably. 4.[Bluetooth 5.3 & Clear Call] The Sport Open Ear Earbuds are equipped with Bluetooth 5.3 chip for more stable connection, faster transmission speed and stronger signal. Mic with environmental noise reduction technology work together to monitor the sounds around you and instantly produce an opposite signal to reduce background noise, allowing you to hear crystal clear calls like you are communicating face to face with others.