**Specifications:**
**Brand:** Lanston
**Model:** D4/D4C
**Color Options:** Black, White, Pink, Brown
**Version Differentiation:** With Mic Version, Tuning Version
**Driver Diameter:** 8mm
**Impedance:** 16Ω
**Sensitivity:** 96.7dB±3dB
**Frequency Response:** 20-20KHZ
**Cable Length:** ~120cm
**Plug Type:** 3.5mm
**Key Features:**
Four-core flagship version, 1D4C
Comfortable in-ear design with noise isolation and 9D sound effects
Four-core power with 4 speakers and 4 sound chambers
High-definition resolution and superior sound quality
Zero latency for stable audio transmission
Long lifespan with 1-year warranty
Geometric aesthetic design with ergonomic acoustics
Passive noise-cancelling technology for immersive listening experience
Multi-functional in-line control with high-definition silicon microphone
TPE noise-cancelling cable with player-grade core configuration
Available in Mic Version and Tuning Version for different functionalities
**Sound Quality:**
Enhanced bass effect and sound fidelity compared to single-speaker earphones
THD curve and total harmonic distortion curve for detailed sound analysis
Smooth sound wave transmission for a premium listening experience
**Note:** Product specifications are based on internal testing by Lanston laboratories. Actual performance may vary depending on usage environment and devices.
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