3.5mm in-ear headphones We didn't just focus on sound quality: the ultra-lightweight material and ergonomic shapes are the results of in-depth studies of the ear for maximum comfort and lightness. The earphones feel great on your ears, they don't move when you use them, and most importantly, they allow you to listen for many hours without discomfort. 14.2mm large moving coil drive unit 14.2mm large moving coil composite diaphragm, providing strong sound resolution, a larger sound field experience, and feeling the music infiltrating the whole body. Magnetic design The earbuds come with a magnetic design on the back that allows the ends of the earbuds to connect, so that the wired earphones can be neat and tidy.