
Acer ANC FIHI Headphone pairs Bluetooth 5.4 and LDAC codec with claimed 48 dB active noise cancellation and Hi‑Res spatial audio. Expect modern wireless connectivity (Bluetooth 5.4, LDAC) plus ANC capability, but know ANC in compact IEM/headset form-factors can be limited compared with passive isolation and fit-dependent performance.
Good for listeners who want modern wireless features (Bluetooth 5.4, LDAC, ANC) and occasional wired use; avoid if you need guaranteed ANC depth or have trouble getting reliable ear seal.
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