5. What is the housing material of the FT3? How is the wearing experience?

The FT3 is made of aluminum alloy with a lightweight hollow design, which ensures the strength of the product structure while being more lightweight, achieving a more comfortable wearing experience. In terms of the adjustment of the wearing structure, the FT3 has undergone much fit testing in FiiO Labs, and the 3-axis swiveling design is one result of that testing. The 3-axis swiveling design was specifically made so that the FT3 could better fit a wide variety of head and face shapes for improved comfort and better seal to maximize sound quality.