The KZ D-Fi features an exclusive dual-magnet and dual-capacity dynamic driver. The term "dual magnet" refers to a dual magnetic circuit, in which the magnetic field is enhanced by the coexistence of the magnetic force of two magnets, achieving high energy efficiency and a stronger response in transient states.

• Innovative tuning methods via circuit board for precise frequency band control.
• Ability to produce 16 different sound styles through switch settings.
• Electronic switches with 4 precise positions: the first three are tuned for low frequencies, while the fourth covers the whole frequency range.

Users can customize and adjust sixteen styles according to their preferences to meet their audio needs.