Key Features：

1. Flagship-Grade Super-Linear Hybrid IEM – Redefining the Limits of Sound – 10DD+3BA hybrid acoustic architecture with superior frequency response, detachable cable design, and advanced 12.7mm super-linear driver structure. A truly balanced high-end hybrid IEM mastering both ultra-low and ultra-high frequencies.

2. Golden Acoustic Ratio – Redefining Flagship Sound – Features a precisely calibrated driver configuration: 30019 Mid-High Frequency BA ×1, 31736 Ultra-High Frequency BA ×2, 10mm Super-Linear Dynamic Driver ×1 per side. Each driver is dedicated to its specific frequency range for optimal performance.

3. Powerful Dynamic Driver – Unlocking a New Dimension of Bass – Equipped with a 10mm super-linear dynamic driver, ZS12 Pro 2 features an optimized magnetic circuit and refined diaphragm design that delivers exceptional bass depth and extension. Every low note resonates with powerful tonality and layered texture – reproducing sound with remarkable realism and emotional impact.

4. Dual-Sided 10-Driver Setup – Unveiling the Layers of Sound – Each side houses a 10mm dynamic driver plus two 31736 ultra-high-frequency BAs and one 30019 mid-high-frequency BA. This multi-driver configuration ensures seamless separation and detail reproduction across frequencies – allowing subtle details to shine with clarity and richness.

5. 31736 Balanced Armature ×2 – Exquisite High-Frequency Extension – Enhances ultra-high frequency extension. Delivers precise separation and crisp detail – creating an airy, transparent treble that reveals every nuance.

6. 30019 Balanced Armature – Lifelike Vocal Detail – Optimized for the mid-high frequency range, delivering natural and lifelike vocal reproduction. Achieves a refined treble response – smooth and intimate vocal delivery.

7. Reference-Grade HiFi Sound Signature – Comparable to Premium IEMs Worth Thousands – Through meticulous tuning and acoustic optimization, KZ engineers have achieved a perfectly balanced three-frequency performance – deep and powerful bass without muddiness, clear and transparent mids with vivid detail, and smooth, extended treble. Ideal for vocal lovers, instrumental music, or gaming soundscapes.

8. Built-In Electronic Crossover Board – The "Sound Commander" of Hybrid Drivers – Beyond its advanced 10D+3BA configuration, ZS12 Pro 2 features a professional electronic crossover board acting as the "sound director." Ensures precise frequency division between dynamic and balanced armature drivers – minimizing interference and maximizing hybrid performance.

9. Dual Color Options – Where Style Meets Substance – Choose between Classic Black and Tech Silver – each crafted with precision to complement your personal style. The lightweight and skin-friendly resin shell delivers a perfect balance of aesthetics, comfort, and durability.

10. Gold-Plated Detachable 2-Pin Connector – One IEM, Multiple Possibilities – Features 2-Pin gold-plated detachable cable design, allowing you to easily swap cables in seconds. Upgrade to Bluetooth with a KZ Bluetooth module – transforming it instantly into a wireless HiFi earphone.

11. Ergonomic Over-Ear Design – Comfort and Stability in Every Fit – Using years of KZ's ear data modeling and ergonomic research, ZS12 Pro 2's shell is designed to perfectly fit the contours of the human ear. With an over-ear design, it ensures a secure and comfortable fit even during long listening sessions.

12. Optional Type-C Sound Card Version – Four Preset Sound Modes – Choose from Music Equalization Mode, Low-Frequency Mode, Vocals Balanced Mode, and Full Power Mode. Type-C digital audio plug – wireless design eliminates analog noise for distortion-free clarity. Game-ready precision – perfect for FPS titles with precise spatial positioning.

13. Dual Microphones – Crystal-Clear Calls – Equipped with dual high-performance omnidirectional microphones. Smart in-line control with one-touch operation: press once briefly for play/pause or answer/hang up, press once to reject, press twice for next track, press three times for previous track.

14. High-Purity Silver-Plated Upgrade Cable – Crafted from high-purity oxygen-free copper, silver-plated. Provides minimal loss, ensuring fast and accurate signal transmission. Enhances high-frequency resolution and detail retrieval.

15. Product Information – Model: ZS12 Pro 2, Frequency Response: 10Hz-40kHz, Unit Impedance: 35Ω, Unit Sensitivity: 108±2dB, Plug Type: 3.5mm, Pin Type: 0.75mm, Wire Material: Dual Parallel Silver-Plated Wire, Wire Length: 120±5cm, Colors: Black/Silver.

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