FIIO FA19 from authorized Japanese number Wired earphones Earphones FIO-IEM-FA19-B [Ships retailer/Serial included]

【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. Equipped with 10 Knowles BA drivers per side 3-way crossover design for accurate band division Custom low-frequency BA driver jointly developed by FIIO and Knowles. Equipped with a "negative feedback low frequency improvement system" that realizes a deep low frequency range. S.Turbo technology brings out the performance of low-frequency drivers Equipped with notch filter technology for clean midrange Equipped with a dip switch that instantly changes frequency characteristics Adopts a 3D printed housing that supports a variety of high-quality sound technologies High purity sterling silver cable with replaceable 3.5/4.4mm plugs Obtained high-resolution audio certification FA19 is an earphone developed as a flagship model in the FA series, equipped with multiple balanced armature drivers (BA drivers). A total of 10 driver configurations (one side) with 4 BA drivers for the high range, 2 for the mid range, and 4 for the low range, as well as a variety of high sound quality technologies made possible by using 3D printers, have been generously installed to achieve high sound quality befitting a flagship model.