In celebration of their 14th anniversary, FiiO has designed an all-new collector’s edition flagship, the brand new FiiO FDX. Experience a new level of royalty with 24K gold-plated ear shells that also have 60 initiation diamond inlay. If you think the latest flagship FD7 is a looker, you seriously need to have a look at the gorgeous FDX!! The pair comes with an exclusive 14th-anniversary badge with a unique serial number for each unit, an exclusive wooden earphone case, and an exclusive experience for its users!! Ultra-Large Pure Beryllium Dynamic Driver For Exclusive Sound Performance FiiO has designed a 12mm large dynamic driver unit with a pure beryllium diaphragm coil. Pure Beryllium material is known for its sturdiness and lightweight characteristics that allow for swift movement of the coil ensuring high-quality sound performance with great clarity and lower distortion. FiiO FDX is crafted to deliver not only great looks but also an exclusive sound experience. Exclusive high-purity braided cable The FDX comes with an extremely high-quality cable worthy of its special status. High purity gold, copper and silver are combined in one cable – each strand consists of 20 wires of each kind of metal weaved together, for a grand total of 240 wires in the cable. Medical-grade TPU is used for the sheath to resist against yellowing after long-term use and against stiffening when in low-temperature environment. Exclusive Collector’s Edition Accessories FiiO FDX is made to deliver an experience, an experience of FiiO’s exclusive craftsmanship and professionalism. It comes with a rich set of exclusive accessories limited only to the collector’s edition product. It has an exclusive wooden earphone case, an exclusive 14th-anniversary badge with a unique serial number for each unit, and not to mention an exclusive & rich feel with its 24K gold-plated earphones. Front Cavity Acoustic Prism & Semi-Open Rear Cavity FiiO FDX has an acoustic prism equipped in the front cavity that handles timed delays between different sound waves, presenting the users with lower distortion and a high-clarity audio signals. In order to maintain the air pressure inside the cavity and also ensuring a comfortable experience by relieving the pressure on the ears, FiiO has designed the cavities for FDX with a semi-open rear cavity design.