FiiO FD3 PRO Black In-Ear Headphones,

------------------------------------------------------------------------------------------------------------------ 【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. ------------------------------------------------------------------------------------------------------------------

[Achieving Amazingly Powerful Sound with Flagship-Level DLC Diamond Diaphragm] The FD3 Pro headphones leverage many of the advantages of FiiO's dynamic drivers. The diaphragm is made of diamond-like carbon (DLC), which is extremely rigid and incredibly lightweight while reducing unwanted distortion, allowing the driver to achieve superior transient response. As a result, the driver, which has excellent sound quality and minimal distortion, is given the added bonus of ultra-high sensitivity. [Breathtaking Acoustic Prism with Flagship Grade] The FD3 also features the acoustic prism that was effectively implemented in the flagship FD5 to deliver superior sound quality. Similar to the FD5, the acoustic prism system offers numerous advantages, including eliminating high-frequency standing waves, enhancing overall sound wave diffusion, and effectively resolving time delay issues caused by sound wave propagation paths within the cavity. All of this contributes to superb sound quality. [Semi-open design for better sound, less fatigue, and reduced noise]: Based on FiiO's patented technology, the FD3's semi-open design offers several advantages to its air-pressure-balanced internal structure. This design not only delivers a more natural sound but also effectively protects hearing and reduces pressure on the eardrum by balancing the air pressure within the FD3. 【2.5D Film Coated Glass Faceplate】The unique celluloid panel is covered with 2.5D film coated glass, achieving a pure yet fresh clarity. In addition, the aluminum-magnesium alloy body makes the FD3 extremely lightweight, making it easier and more enjoyable to carry. The aluminum-magnesium alloy body is manufactured using an industrial process that combines 5-axis CNC machining and hand polishing. [Your Own Enhanced Experience] The FD3 Pro comes with a dedicated cable made of high-purity single-crystal silver-plated copper, using 19 wires in each of the 8-strand configurations, for a total of 152 wires braided in the Litz Type 2 style. The cable also features blue on the left and red on the right markings, making it convenient to change the audio plug, allowing you to freely switch between 2.5/3.5/4.4mm plugs depending on the source. With this cable, every note will be crystal clear.