FIIO FH19 FIO-IEM-FH19-B [Shipped from authorized Japanese retailer/with serial number] Earphones earphones

【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.

Push-pull dual dynamic driver reduces distortion and delivers powerful bass. Adopts a custom BA driver made by Knowles & achieves rich tone with semi-open structure Beautiful texture and durability made of titanium + 7000 series aluminum alloy for aircraft Semi-open structure reproduces a natural sound field and reduces ear fatigue A mid-range notch filter that suppresses unnecessary resonance creates a natural transition between vocals and treble. 4WAY crossover network that maximizes the characteristics of each driver Comfortable fit even when used for long periods of time