Not only do we have a heavenly sound, but most importantly, it is comfortable to wear. Ergonomics Design：The wired earbuds for school are ergonomically designed, flexible, lightweight, allowing you to comfortably wear for long periods of time. Noise cancelling earbuds for sleep with ergonomic angular design and soft & premium corded earbuds！ The ear buds with cord are lightweight, tangle free cable and can easily fit in a pocket, The best wired earbuds with 100% copper core restore original sound quality,the use of quality materials means a longer lifespan. Comfortable Ergonomic Design： The design of our earphones is based on in-depth research on the ear canal, which can fit the natural curve of your ears for optimal comfort and anti-slip effects. Occasion: Whether you are in the gym, exercising, running or jogging, the earbuds with mic can ensure safer and more comfortable fit to your ears.