FIIO FT1 Beech FIO-FT1-C [Ships from an authorized Japanese retailer, includes serial number] Closed-back headphones with large dynamic drivers

Black, made from North American black walnut, suppresses unnecessary resonance and reduces standing waves. Beech boasts high hardness and excellent corrosion resistance. Two types of carefully selected housings Equipped with a large 60mm dynamic driver that delivers deep bass An extremely thin, lightweight, yet strong nano-wood fiber composite diaphragm delivers natural tone W-shaped independent suspension design minimizes energy loss by expanding the vibrating area An ultra-fine CCAW voice coil reduces the total mass of the vibrating system, achieving faster response and less reverberation Multiple physical sound-blocking technologies achieve sound insulation performance of 26dB U-shaped acoustic damper improves the quality of low and infra-low frequencies Cone-shaped airflow guide minimizes high-frequency attenuation 32Ω low impedance design that is easy to drive with a variety of devices 3-axis free rotation mechanism provides a comfortable fit