FIIO is an audio equipment brand established in China in 2007. It specializes in portable audio products such as DAC-equipped headphone amplifiers, digital audio players, and in-ear monitors, and its brand name is derived from the combination of "FIDELITY" and "1 & 0, which stands for Digital." It has been recognized for its high design and manufacturing quality, and has now grown into a major brand with operations in countries around the world.