FiiO JD7 Silver authorized store wired earphones dynamic driver PU diaphragm MMCX [Domestic product] Semi-open

Adopts a composite material vibration plate of semi-crystalline polymer + PU Natural sound due to semi-open structure Sound tuning according to Hermann target curve Achieves high quality sound regardless of connected device by amplifying magnetic flux 316L stainless steel shell Internal design to bring out the potential of the dynamic driver