The Fiio X3 Hi-Res Lossless Portable Digital Audio Player is the company's newer generation of audio player. Offering refined body designed. FiiO X3 2nd Generation digital audio player and USB DAC offers full support of lossless music files including DSD. High-quality DAC and intuative user interface. The black X3 (2nd Gen) from Fiio is a portable high resolution audio player and USB-DAC for audio enthusiasts. The unit features an audiophile grade.