FiiO is known worldwide for its pioneering technologies, and with the FD3 they have not been on the lazy side either. With the accompanying acoustic prism, you avoid standing waves in the treble, lower the level of cancellations and improve wave diffusion. With the semi-open design, you avoid the build-up of air pressure in your ears. The earplug itself is made of a mixture between aluminum and magnesium. The material is CNC milled and then hand polished. The result of this is reflected in both appearance and sound quality, a masterpiece that is both cost-effective and provides countless hours of pure listening pleasure.
