The FiiO BTR7 is a portable Bluetooth amplifier and DAC designed for audiophiles seeking high-quality audio on the go. It supports various audio codecs, including LDAC, AAC, and aptX HD, ensuring excellent wireless audio quality. The BTR7 is equipped with a dual DAC setup using the ESS Sabre ES9219C chips, which provides a clear and detailed sound profile. It features a built-in battery that offers extensive playback time, allowing users to enjoy their music without frequent recharges. The device includes a balanced output for enhanced sound quality, catering to more demanding headphones. The sleek, compact design makes it convenient to carry, and the aluminum casing adds durability alongside an aesthetic appeal. Integrated controls allow for easy operation, including volume adjustment and track navigation, providing a user-friendly experience. Additionally, the BTR7 features high-resolution audio support, making it compatible with various file formats, and is equipped with a 3.5mm output alongside a 4.4mm balanced output for versatile connections. The device also supports USB-C for wired connections, further enhancing its versatility.