FiiO expands its 2025 lineup with the FT13 closed-back headphones, B15 R2R DAC, and Air Link Bluetooth transmitter—bringing premium sound, smart design, and hi-res performance to every listener.

If you visit Fosi Audio’s website, it’s clear how proud they are of the i5—a first foray into full-size headphones after considerable research and development. Each earcup houses a planar-magnetic ...