About this item Upgraded Version EDX PRO EarphonesThis upgraded version features a special dual magnetic circuit sound unit with a size of 10mm. The dual magnetic circuit dynamic unit provides a more natural low-frequency response and transparent high-frequency performance. Special 10MM Dual Magnetic Circuit Dynamic UnitThe upgraded version of this in-ear earphone employs a unique 10mm dual magnetic circuit sound unit, delivering natural low-frequency response and transparent high-frequency performance. The advantages of the dual magnetic circuit dynamic unit lie in its strong and abundant magnetic capabilities, resulting in impressive low-frequency sound effects and gentle, sweet vocals, reminiscent of a live concert experience. Three Frequencies Equalization, Smooth To The EndAn electronic crossover board is integrated into the dynamic unit using advanced technology to enhance the performance of the low to mid-frequency dynamic range. Whether it's EMD, Rock, R & B, or Classical Violi