BQEYZ NI HiFi In-Ear Ceramic-Composite Dynamic IEM

BQEYZ NI (Niji) — Ceramic-Composite Dynamic IEM with Interchangeable 3.5 mm / 4.4 mm Plugs

High-frequency remastering, crystal-clear detail, and a spacious, precise stage — for music and gaming.

The BQEYZ NI integrates a bioceramic composite diaphragm with PZT piezoelectric technology derived from BQEYZ’s flagship designs. A nano-layer cast-film structure (ceramic base + polymer) is applied to the inner dome, combining high rigidity and low mass for fast transients, extended treble, and clean, low-distortion mids. A dual-chamber 11 mm dynamic driver manages airflow front and rear to boost bass depth, suppress dynamic compression, and sharpen imaging.

Acoustic Engineering

• Bioceramic Composite Dome: High stiffness/low density suppresses breakup and residual vibration for purer tone and airy overtones.
• Dual-Chamber Airflow: Front chamber vents mids/highs swiftly; rear sealed cavity extends low-frequency paths via damping and vents for deeper, cleaner bass.
• Dynamic Compression Control: Split chambers distribute pressure changes to keep the diaphragm linear during high SPL passages.
• Lower Mid/High Distortion: Rear absorption minimizes phase cancellation (1–5 kHz); reinforced surround reduces segmented vibration >10 kHz.
• Air-Pressure Balancing: Tuned vents accelerate diaphragm rebound for faster decay, precise localization, and a wider, layered stage.

Sound Signature

• High Resolution: Ultra-fast transients and low distortion reveal micro-detail in complex mixes.
• Exceptional Treble: Bright yet controlled top end with natural overtones for strings, brass, and ambience.
• Snappy Dynamics: Percussion attacks and string plucks render cleanly with convincing impact.
• Spacious Imaging: Open, well-defined stage with clear instrument placement and separation.

Design & Craft

• “Cloud Silk” 3D Faceplate: Multilayer fiber stacking with high-temperature color processing creates subtle, shimmering textures.
• Crystal Resin Shell: Clear, gem-like resin encases the artwork for durability and a premium luster.
• CNC Aluminum Base: Rigid alloy base strengthens the structure and reduces unwanted resonance from the rear chamber.

Ready for Gaming

High resolution, rapid transient response, and a broad, accurate stage make NI a natural fit for gaming. Footsteps, cues, and micro-effects are easy to pinpoint for confident positioning.

Cable & Plugs

• Interchangeable Plugs: Swap between 3.5 mm single-ended and 4.4 mm balanced to match players, dongles, and DAPs.
• High-Purity Litz Build: 4 strands of single-crystal copper; each strand combines 0.05×25 silver-plated inner wires + 0.08×19 silver-plated copper outer wires (≈196 total conductors).
• 0.78 mm 2-Pin: Broad compatibility with aftermarket cables and Bluetooth adapters.

Fit & Ergonomics

The shell is polished through multiple stages and shaped to typical ear geometry for a light, secure fit with reduced canal pressure over long sessions.

Specifications

Package Contents

• NI Earphones ×1 pair
• Detachable Cable ×1
• Interchangeable Plugs: 3.5 mm & 4.4 mm ×1 set
• Carry Case ×1
• Cleaning Brush ×1
• Silicone Ear Tips ×6 pairs (S/M/L)
• Ear Tip Storage Plate ×1

Notes: Treble extension >40 kHz exceeds typical human hearing but benefits harmonics and perceived air. Actual performance may vary with source, tips, and fit.