Specification: _x005f_x000D_ Brand: KZ _x005f_x000D_ Model: ZEX PRO _x005f_x000D_ Color: Silver, Black (optional) _x005f_x000D_ Line control function: without mic or with mic (optional) _x005f_x000D_ Sound production principle: Electrostatic Hybird _x005f_x000D_ Wearing method: In ear style _x005f_x000D_ Plug type: L-bend type _x005f_x000D_ Frequency response range: 20-40000 (Hz) _x005f_x000D_ Impedance: 25 (Ω) _x005f_x000D_ Sensitivity: 104 (dB) _x005f_x000D_ Wire length: 1.2 (m) _x005f_x000D_ Plug diameter: 3.5mm _x005f_x000D_ Chamber material: metal+plastic _x005f_x000D_ Product size: about 102 * 72 * 32mm/4.01 * 2.83 * 1.25inch _x005f_x000D_ Packaging weight: 86g _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 Pair x Headphones _x005f_x000D_ 3 Pairs x Headphone Sleeves _x005f_x000D_ 1 x 3.5mm Jack Cable _x005f_x000D_ 1 x Instructions 1. Hybrid Triple-Driver Design: The KZ ZEX Pro combines a static unit, dynamic unit, and balanced armature driver to create a superior auditory experience that brings out the best in each individual component. 2. Wide Soundstage: With a sensitivity that surpasses even dynamic earphones in the 20-40kHz high-frequency range, the ZEX Pro's static unit provides high-density and detail reproduction, resulting in a more expansive soundstage and improved treble extension. 3. Low Voltage Electrostatic Unit: The ultra-thin diaphragm of the low-voltage electrostatic unit is driven by an even static force, resulting in better performance and more consistent quality compared to other units of the same size. 4. Craftsmanship Meets Aesthetics: The ZEX Pro features an aviation-grade zinc alloy body with laser-engraved surfaces, complemented by imported skin-friendly resin shells. The refined metal texture and sleek aesthetic provide a unique and unforgettable look.