The FiiO Q7 is a portable DAC and headphone amplifier designed to deliver high-quality audio performance in a compact form factor. It features an advanced AKM AK4493EQ DAC chip and utilizes a dual gain architecture to ensure versatile compatibility across a wide range of headphones and earphones. The device supports various audio formats and high-resolution audio up to 32-bit/768 kHz and DSD256 playback. Additionally, the Q7 offers multiple input options, including USB and optical connections, and supports Bluetooth connectivity with aptX HD for wireless audio streaming. Its aluminum chassis provides durability and an elegant design, while the user-friendly interface includes a volume knob and several controls for easy operation. The Q7 also includes a built-in battery for up to 12 hours of playtime, making it suitable for on-the-go music lovers.