Fiio FF3S Authorized Store Number Intraconcave Type Earphones Dynamic Driver Lightweight Single Balance FIO-IEM-FF3S-B [Domestic Product/serial

【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. FF3S is the latest model based on FIIO's intraconcave earphone FF3, which has been well-received for its uncompromising sound quality design, and has been significantly reduced in weight by changing the housing material, and is even easier to use with the use of a detachable cable. By combining FIIO's earphone development technologies such as a 14.2mm large-diameter driver, a newly designed drum-shaped housing, and the adoption of a sound pipe structure to enhance low frequencies, we have achieved a sound that breaks the conventional impression of intraconcave type earphones by expressing deep, sharp bass and glossy mid-high frequencies.