LCP Superlinear Composite Diaphragm LCP composite micron-scale diaphragm, with very strong elasticity. It realizes higher accurate high-frequency vibration and excellent transient response. TINHIFI CS equipped with KAIKOKU-CCAW 0.035mm light weight sound unit imported from Japan is adopted.lt has the effect of a wide sound range and high-frequency transparency, which optimizes the high-frequency extension of the sound and presents richer detail. _ Light-weight Ergonomics Design TINHIFI C3 adopts 3D-printing technology, capturing the contour of the ear canal and the shape of the outer ear accurately through a computer model simulation of the human ears. It not only fits the human ears canal perfectly but also maintains a certain physical sound insulation ability, which makes it very comfortable to wear. The TINHIFI C3 is made with environmental-friendly material that are harmless to the skin for long-term contact. _ The Harman Target Curve of According Audiophile Target TINHIFI C3 is tuned according to Harman Target and the opinions of senior audiophiles, which makes it have the right extension from low-frequency to high-frequency, full intermediate frequency, and rich layers. _ HIFI Grade Silver Plated Cable Using 4-core 270C silver-plated wire core, the sound is transparent and clean. For a 2-Pin interchangeable cable design, you can replace other earphone cables to get more sound quality experience. N52 ultra-powerful magnet and full internal dual magnetic circuit design provide unmatched low-frequency performance and transient response. _ Specification Driver Unit : 10mm PU+LCP Composite diaphragm Interface : Gold-plated 2P connector Cable : 1.25m 4 strands transparent pvc stranded wire Impedance : 32Ω Max Power : 5mW Frequency : 10-20000Hz Sensitivity : 106±3dB@1kHz 0.179V