Wire earmuffs. The first generation of wooden diaphragm headphones was released in 2008. This series of headphones has always adhered to the concept of "original sound exploration". FW1800 is the flagship wooden diaphragm flagship of the FW series regular products at the main price range. JVC officially launched the fw1800 in China. , as the flagship wooden diaphragm earplugs in 2019, this product has built-in Accrete air damping and adds carbon-coated PET material to the surface of the diaphragm to avoid the instability of the diaphragm when it vibrates. You can replace the wire earmuffs.