Product Information Product model KZ D-Fi Sensitivity 1103dB Frequency 7-45000HZ Plug type 3.5mm Pin Type 0.75mm Cable Type Silver-plated cable Cable length 1205cm Impedance 29Ohm~48Ohm Tuning Version The illustrious dual-magnet & dual-cavity dynamic brings you an extraordinary acoustic experience KZ D-Fi adopts the exclusive custom dual-magnet & dual-cavity dynamic driver. Dual magnetic means a dual magnetic circuit whose magnetic field is enhanced by superimposing the magnetic force of 2 magnets to achieve energy efficiency and stronger transient performance. Alloy cover Metal acoustic mesh 10mm Dual magnetic dynamic driver 2Pin gold-plated socket Metal front-cavity Metal filter nozzle mesh Sound isolating memory foam ear tips The pioneering and innovative precise tuning method The traditional tuning method is achieved by replacing dampers with different mesh numbers and sizes, but this method cannot accurately control a specific frequency band. KZ adopts innovative circuit board adjustment methods to control each frequency band according to our target curve accurately. KZ Patent Electronic tuning Pioneering precision tuning methods. Traditional tuning methods Unable to adjust accurately for a specific frequency band. X Two versions available Meet the individual needs of different music lovers KZ D-Fi is designed with a standard version and a tunable version. The standard version has an accurate and balanced frequency response tuning. The tunable version can achieve 16 different sound styles by adjusting the toggle switch to meet the different needs of more players. * KZ Acoustics Laboratory measures the above data. Actual use may be slightly different depending on the specific situation. Accurate and balanced frequency response. Tuning version 4 switches to achieve 16 tuning styles. Precision four-gear switch Sixteen tuning styles KZ D-Fi adopts exclusive patented tuning technology and has precise 4-gear electronic switches. The first, second, and third gears are adjusted for low frequenc...