The FiiO JIEZI is a 6g USB-C DAC and headphone amp from FiiO's JadeAudio sub-brand, sold as the JIEZI A with a 3.5mm jack or the JIEZI B with a single-ended 4.4mm jack, decoding PCM up to 384kHz/32-bit and DSD256 with a 10-band PEQ. It suits phone and laptop listeners using IEMs and earbuds.
Who the FiiO JIEZI is for
Calls on the go (JIEZI A): The 3.5mm version supports in-line controls for calls, karaoke, recording and in-game voice chat; FiiO notes iOS and some Android phones may not support them.
4.4mm plug owners (JIEZI B): The 4.4mm version takes 4.4mm-terminated earphones directly, but FiiO states its output is single-ended, not balanced.
EQ tinkerers: The 10-band PEQ is set in the FiiO Control app on Android or a web interface on computers; FiiO says iOS devices cannot connect to the app.
Console gaming: Support for UAC 2.0 and UAC 1.0 lets it work with consoles such as Nintendo Switch and PS5, according to FiiO.
Skip it if: You need true balanced output or power for demanding headphones; both versions are rated at 34mW per channel into 32Ω.
FiiO JIEZI key specs
Versions: JIEZI A (3.5mm, in-line controls) or JIEZI B (4.4mm, single-ended)
Colors: Black Gold or Black Red
Input: USB-C (attached braided cable)
Output power: ≥49mW + 49mW at 16Ω; ≥34mW + 34mW at 32Ω (THD+N under 1%)
Formats: PCM up to 384kHz/32-bit; DSD256
SNR and THD+N: 104dB; 0.0034%
EQ and app: 10-band PEQ via FiiO Control (Android) or a web interface on computers
Size and weight: JIEZI A about 90mm long and 8.5mm wide; JIEZI B about 100mm long and 9mm wide; about 6g
In the box: JIEZI, quick start guide, product service card
Genuine FiiO stock. Free shipping on every order, 45-day returns.
FiiO JIEZI vs similar options
vs FiiO Snowsky TINY A: Adds USB-C pass-through charging and an RGB sample-rate light; pick the JIEZI for a lower price and a JIEZI B version with a 4.4mm jack.
vs Fosi Audio D2: Costs about the same and also passes headset mics through on its 3.5mm output; pick the JIEZI for a 10-band PEQ, DSD256 decoding and the 4.4mm JIEZI B option.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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