The FiiO X3 Mark III is a portable digital audio player designed for high-quality audio playback. It supports a wide range of audio formats including PCM, DSD, and more, catering to audiophiles looking for superior sound. Powered by a dual DAC setup, it typically features the AK4490EN DAC chip, which helps deliver a vibrant and detailed sound profile. The device comes with a 3.5mm headphone output as well as a 2.5mm balanced output, allowing for flexibility in connecting various headphones and earbuds. The X3 Mark III also has a microSD card slot supporting capacities up to 512GB, providing ample storage for music libraries. The device is equipped with a 3.2-inch LCD touchscreen, facilitating easy navigation through its user-friendly interface. It supports Bluetooth for wireless audio streaming, enhancing convenience when utilizing compatible devices. Battery life is also commendable, often providing around 12-15 hours of continuous playback on a single charge. Users can customize sound profiles through its EQ settings and additional features such as gapless playback are included to ensure seamless listening experiences. Overall, the FiiO X3 Mark III is targeted at those who appreciate high-resolution music playback in a portable format.