FIIO FT1 from an authorized Japanese retailer Serial number with 60mm large dynamic drivers FIO-FT1-B [Shipped - included] Headphones, Closed-back,

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【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ------------------------------------------------------------------------------------------------------------------

North American black walnut housing suppresses unwanted resonance and reduces standing waves. Equipped with a large 60mm dynamic driver for deep, powerful bass. The ultra-thin, lightweight yet robust nanowood fiber composite diaphragm delivers a natural sound. W-type independent suspension design minimizes energy loss by increasing the vibration area. The ultra-fine CCAW voice coil reduces the total mass of the vibrating system, resulting in faster response and lower reverberation. A combination of various physical sound insulation technologies achieves a sound insulation performance of up to 26 dB. U-shaped acoustic damper that improves the quality of low and ultra-low frequencies Cone-shaped airflow guide that minimizes high-frequency attenuation. Low impedance design of 32Ω, making it easy to drive with various devices. The 3-axis freely rotating mechanism provides a comfortable fit. These closed-back headphones, crafted from North American black walnut, pursue a natural sound. The large 60mm drivers create a rich soundstage, and high noise isolation of up to 26dB provides an immersive musical experience. In addition to faithfully reproducing even the finest details of music with a wide frequency response of 10Hz-40kHz, the comfortable fit and luxurious design contribute to a rich listening experience.