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USB-C CABLE DONGLE

FiiO JIEZI B

A USB-C cable dongle with a 4.4 mm single-ended output. About 6 g.

Manual (PDF) · Manufacturer page · Price history

POWER AT 32 Ω34mW4.4 mm single-ended, per channel not stated
OUTPUT IMPEDANCENot statedNo data from the manufacturer
SNR≥104dB32Ω, A-weighted
PRICE$22.99Lowest price at The HiFi Cat
OUTPUTS4.4 mm single-ended
DAC CHIPNot stated
PARAMETRIC EQ10 bands
CONTOURNot supported

Numbers are the manufacturer's stated figures unless marked as measured; sources linked below.

Outputs and power

4.4 mm single-ended
49mWat 16 Ω
Spec image: 49 mW at 16 Ω, per channel or both channels not stated
34mWat 32 Ω
Spec image: 34 mW at 32 Ω, per channel or both channels not stated
Output impedance -
SNR≥104 dB
THD+N<0.0034%

Not stated: gain, supply voltage, crosstalk.

The Quick Start Guide's drawing labels the JIEZI B socket '4.4 mm BAL headphone out'. The release post, its image ('Unbalanced 4.4 mm jack') and FAQ item 14 ('a non-balanced drive for its 4.4 mm interface') say the 4.4 mm socket is driven single-ended. The catalog lists it as single-ended.

Is it enough for your headphones?

FiiO rates the JIEZI B at 49 mW into 16 Ω. Below is how much of that is left to spare for each kind of headphones when you listen loud, with peaks at 110 dB. A figure marked est. is worked out from that rating.

Sensitive IEMsMulti-driver sets that hiss on strong sources
needs 0.6 mW49 mW at 16 Ω+19 dB
Most IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mW34 mW at 32 Ω+10 dB
Easy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mW34 mW at 32 Ω+3 dB
Hard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 3.6 mW at 300 Ω7 dB short
Most planarsPlanar magnetic, low impedance, need current
needs 50 mW34 mW at 32 Ω2 dB short
Demanding planarsThe hardest loads, desktop territory
needs 251 mWest. 18 mW at 60 Ω11 dB short

Where to buy

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The HiFi Cat · retail price for the JIEZI B (4.4mm), checked 10 Nov 2026$22.99The HiFi Cat · read 11 Nov 2026$22.99

Price historyCompare prices on Soundblooms Deals

The device

From FiiO's spec images unless marked
InputUSB-C
FormatsPCM up to 384KHz/32-bit, DSD256
VolumeHost volume, finer steps in the FIIO Control appJadeAudio JIEZI FAQ
AppFiiO Control app on Android phones and a web interface on computersFiiO release post: JadeAudio JIEZI
Works withAndroid, iOS, HarmonyOS, Windows, macOS, and LinuxFiiO release post: JadeAudio JIEZI
BuildAluminum-magnesium alloy construction; housing of palladium-plated oxygen-free copper; silicone and braided double outer jacket cable sheathFiiO release post: JadeAudio JIEZI
Parametric EQ10 bands in FiiO's FIIO Control app. Not supported in Contour.FiiO release post: JadeAudio JIEZI
SizeAbout 11 × 9 × 100 mm
WeightAbout 6 g

The A/B table says In-line microphone: Not supported for the JIEZI B. FAQ item 5 ('Yes, JIEZI supports in-line remote control and recording') and the comparison table name no version. The catalog shows no in-line microphone for the JIEZI B.

How it stacks up against the competition

Power at 32 Ω · price in US dollars
10 mW20 mW50 mW100 mW5 mW$20$30$50scale breaks hereMost IEMs need 3.2 mW+10 dB to spareQuestyle M12i: 21 mW at 32 Ω, $49TANCHJIM SPACE LITE: 98 mW at 32 Ω, $39.99FiiO KA2: 153 mW at 32 Ω, $34.59Hidizs S3 PRO: 55 mW at 32 Ω, $39.99Hidizs S9: 125 mW at 32 Ω, $49.99Hidizs SD2: 70 mW at 32 Ω, $35.99TempoTec Sonata HD III: 70 mW at 32 Ω, $45.90HiBy FC3: 70 mW at 32 Ω, $39Snowsky Tiny A: 34 mW at 32 Ω, $19.99JCALLY AP7: 70 mW at 32 Ω, ~$45.73JCALLY JA56: 22.5 mW at 32 Ω, ~$15.98JCALLY JM6: 28.2 mW at 32 Ω, $19.15JM6JCALLY JM6 PRO: 60 mW at 32 Ω, $14.99JCALLY JM6PRO 2: 70 mW at 32 Ω, $16.99JCALLY JM7: 28.2 mW at 32 Ω, ~$13.11JCALLY JM7MAX: 118 mW at 32 Ω, $19.99JCALLY JM20: 31.3 mW at 32 Ω, ~$31.64JCALLY JM20 PRO: 31.3 mW at 32 Ω, ~$35.46JM20 PROJCALLY JM30: 31.3 mW at 32 Ω, ~$27JCALLY JM30L: 31.3 mW at 32 Ω, $26.99JCALLY JM30PRO: 31.3 mW at 32 Ω, ~$46.49JCALLY JM45: 20 mW at 32 Ω, ~$26.50JM45JCALLY JM45L: 20 mW at 32 Ω, ~$28.45JCALLY JM80E: 45 mW at 32 Ω, $39NiceHCK NK1 Ultra: 122 mW at 32 Ω, $29.99FiiO JIEZI A: 34 mW at 32 Ω, $18.99JIEZI AFiiO JIEZI B10 mW20 mW50 mW100 mW5 mW$20$30$50scale breaks hereMost IEMs need 3.2 mW+10 dB to spareQuestyle M12i: 21 mW at 32 Ω, $49TANCHJIM SPACE LITE: 98 mW at 32 Ω, $39.99FiiO KA2: 153 mW at 32 Ω, $34.59Hidizs S3 PRO: 55 mW at 32 Ω, $39.99Hidizs S9: 125 mW at 32 Ω, $49.99Hidizs SD2: 70 mW at 32 Ω, $35.99TempoTec Sonata HD III: 70 mW at 32 Ω, $45.90HiBy FC3: 70 mW at 32 Ω, $39Snowsky Tiny A: 34 mW at 32 Ω, $19.99JCALLY AP7: 70 mW at 32 Ω, ~$45.73JCALLY JA56: 22.5 mW at 32 Ω, ~$15.98JA56JCALLY JM6: 28.2 mW at 32 Ω, $19.15JM6JCALLY JM6 PRO: 60 mW at 32 Ω, $14.99JCALLY JM6PRO 2: 70 mW at 32 Ω, $16.99JCALLY JM7: 28.2 mW at 32 Ω, ~$13.11JCALLY JM7MAX: 118 mW at 32 Ω, $19.99JCALLY JM20: 31.3 mW at 32 Ω, ~$31.64JM20JCALLY JM20 PRO: 31.3 mW at 32 Ω, ~$35.46JM20 PROJCALLY JM30: 31.3 mW at 32 Ω, ~$27JM30JCALLY JM30L: 31.3 mW at 32 Ω, $26.99JM30LJCALLY JM30PRO: 31.3 mW at 32 Ω, ~$46.49JCALLY JM45: 20 mW at 32 Ω, ~$26.50JM45JCALLY JM45L: 20 mW at 32 Ω, ~$28.45JM45LJCALLY JM80E: 45 mW at 32 Ω, $39NiceHCK NK1 Ultra: 122 mW at 32 Ω, $29.99FiiO JIEZI A: 34 mW at 32 Ω, $18.99JIEZI AFiiO JIEZI B
  • Nearby
  • Most IEMs, 3.2 mW

Compared with

Manufacturers' stated figures; the price is today's lowest

FiiO JIEZI B vs JCALLY JM08L Simplified Edition

JCALLY JM08L Simplified Edition is among the dongles in the catalog closest to FiiO JIEZI B in price: the lowest prices are $22.99 and $22.29, $0.70 apart.

FiiO JIEZI B vs JCALLY JM08L Simplified Edition: the manufacturers' stated figures and today's lowest price, side by side
FiiO JIEZI BJCALLY JM08L Simplified Edition
Power at 32 Ω34 mW4.4 mm single-endedNot stated
Power at 16 Ω49 mW4.4 mm single-endedNot stated
Price today$22.99The HiFi Cat, 10 Nov$22.29Linsoul, 7 Nov
DAC chipNot statedApple C101 chip plug
InputsUSB-CLightning
Outputs4.4 mm single-ended3.5 mm
SizeAbout 11 × 9 × 100 mmNot stated
WeightAbout 6 gNot stated

FiiO JIEZI B price history · JCALLY JM08L Simplified Edition price history

FiiO JIEZI B vs Kiwi Ears Allegro Mini

Kiwi Ears Allegro Mini is among the dongles in the catalog closest to FiiO JIEZI B in price: the lowest prices are $22.99 and $20.40, $2.59 apart.

FiiO JIEZI B vs Kiwi Ears Allegro Mini: the manufacturers' stated figures and today's lowest price, side by side
FiiO JIEZI BKiwi Ears Allegro Mini
Power at 32 Ω34 mW4.4 mm single-endedNot stated
Power at 16 Ω49 mW4.4 mm single-endedNot stated
Price today$22.99The HiFi Cat, 10 Nov$20.40Linsoul, 11 Nov
InputsUSB-CUSB-C
Outputs4.4 mm single-ended3.5 mm · 4.4 mm balanced
SizeAbout 11 × 9 × 100 mmNot stated
WeightAbout 6 gNot stated

FiiO JIEZI B price history · Kiwi Ears Allegro Mini price history

FiiO JIEZI B vs JCALLY JM7 MAX

JCALLY JM7 MAX is among the dongles in the catalog closest to FiiO JIEZI B in price: at 32 Ω FiiO JIEZI B is listed at 34 mW and JCALLY JM7 MAX at ≈118 mW; the lowest prices are $22.99 and $19.99, $3 apart.

FiiO JIEZI B vs JCALLY JM7 MAX: the manufacturers' stated figures and today's lowest price, side by side
FiiO JIEZI BJCALLY JM7 MAX
Power at 32 Ω34 mW4.4 mm single-ended≈118 mW3.5 mm, socket not printed; the only headphone output
Power at 16 Ω49 mW4.4 mm single-ended≈228 mW3.5 mm, socket not printed; the only headphone output
Power at 300 ΩNot stated≈12.9 mW3.5 mm, socket not printed; the only headphone output
Price today$22.99The HiFi Cat, 10 Nov$19.99Hangout Audio, 7 Nov
DAC chipNot statedConexant CX31993
InputsUSB-CUSB-C
Outputs4.4 mm single-ended3.5 mm
SizeAbout 11 × 9 × 100 mmNot stated
WeightAbout 6 gNot stated

FiiO JIEZI B price history · JCALLY JM7 MAX price history

More like this

More portable DAC amps

Sources

Checked 10 Nov 2026
FiiO release post: JadeAudio JIEZI
fiio.com
Used for formats, input, outputs, the app, compatibility, parametric EQ, build, brand and usb audio class
FiiO release post image: JIEZI B
wezhan.net · the spec image
Used for outputs and parametric EQ
JadeAudio JIEZI FAQ
jadeaudio.com
Used for power, formats, outputs, controls, the app, parametric EQ, microphone and usb audio class
JadeAudio JIEZI FAQ, table JIEZI A / JIEZI B
websiteonline.cn · the spec image
Used for power, noise and distortion, outputs and microphone
JadeAudio JIEZI FAQ, table JIEZI / JA11 / KA11
websiteonline.cn · the spec image
Used for power, output voltage, noise and distortion, formats, input, microphone, size, weight, build and power consumption
JadeAudio JIEZI Quick Start Guide
fiio.net · the manual, PDF
Used for input, outputs, the app, compatibility and brand
FiiO forum: JIEZI firmware download
fiio.com
Used for firmware