Adopt 10mm large moving coil unit and composite diaphragm, enjoy immersive music as it was intended, with crisp highs, a rich mid-range and balanced bass<br />The metal charging case adopts 10 processes to improve its hardness, and reduce scratch and aging. Small size, easy to carry and use<br />Active noise cancelling technology blocks out unwanted background noise for an enhanced listening experience<br />Ergonomic in-ear design, fit the ear canal, comfortable to wear, no pressure ">