The FiiO X Series is a line of high-resolution digital audio players designed for audiophiles and music enthusiasts. These portable devices support various audio formats, including FLAC, DSD, and WAV, ensuring high-quality sound reproduction. The X Series features advanced DAC chips and amplifiers, providing a rich listening experience with detailed sound. In addition to audio playback, the FiiO X Series players often include Bluetooth connectivity, allowing users to stream music wirelessly. They also come with user-friendly interfaces and touchscreens, making navigation easy. Overall, the FiiO X Series combines portability with premium audio performance for an enhanced listening experience.