The FiiO Q Series is a line of portable digital-to-analog converters (DACs) and headphone amplifiers designed to enhance audio quality for music lovers. These devices are compatible with various sources, including smartphones, computers, and tablets, providing high-resolution audio playback. FiiO's Q Series models often feature advanced technology, such as support for high sample rates and multiple output options. They are known for their compact design, making them easy to carry, while delivering powerful sound performance that appeals to audiophiles and casual listeners alike.