[Flagship-grade beryllium-plated diaphragm driver]With FiiO's typical flagship-grade headphone technology, the FD1 headphone dynamic driver is made of....
[Two-way magnetic circuit design,powerful driven capacity]The FD1 earphone dynamic driver is designed with an N50 two-way magnetic circuit having a....
[Patented balanced pressure relief technology,for long-time wearing]The beryllium diaphragm coupled with the two-way magnetic circuit design allows....
[Gold-plated retaining ring, stable vocalization unit]The FD1 earbuds is meticulously designed with a gold-plated aluminium alloy retaining ring and....
[Higher-standard upgraded accessory,4-stranded high-purity monocrystalline copper cable]Included with the FD1 HiFi headphone is the cable made of....