Audiophile-grade DSP - 10-band customizable PEQ
Its high-end integrated audiophile-grade DSP chip allows for a precise PEQ like those found in high-end audio gear.
Adjust the 10-band PEQ with the FIIO Control App or web interface to perfectly match your preferences. You can save these custom sound tunings and easily share them via the cloud.
Triple-integrated technologies, within an extraordinarily small package
The JIEZI integrates a high-performance USB chip, a high sampling rate DAC and ADC, and a high-precision DSP.
It supports PCM 32bit/384kHz and DSD256 decoding, offering impressive performance at an affordable price.
3.5mm jack with support for calls - Conveniently versatile
The JIEZI A, with its 3.5mm interface that supports in-line controls, can do calls, karaoke, recording, and in-game voice chat— making it a popular and versatile all-in-one solution.
*iOS and a very small number of Android devices may be system-protected and not be compatible with in-line controls and calls.
Unbalanced 4.4mm interface
The JIEZI B, with its 4.4mm jack, offers a more portable dongle-style DAC/amp for users with 4.4mm headphones.
While it drives headphones using the same single-ended common-mode architecture, its power output rivals that of comparable balanced-drive devices.
Aluminium-magnesium alloy construction – a lightweight and seamless design
Its integrated cable and body design allows for a truly seamless connection within an overall light and compact design.
Its aluminium-magnesium alloy construction provides a premium tactile feel while also boasting long-lasting durability.
Worry-free compatibility
Enjoy broad plug-and-play compatibility across Android, iOS, HarmonyOS, Windows, MacOS, and Linux devices.
Support for both UAC2.0 and UAC1.0 allows it to work seamlessly with gaming consoles like Switch and PS5, making it highly versatile.
Supports app and web control
It supports connecting via the FIIO Control app on Android phones and a web interface on computers, unlocking access to even more user-friendly features.
This includes switching between customizable PEQ presets, UAC version switching, fine-grain volume control, and more.
*Due to system permission restrictions, iOS devices cannot connect to or control the JIEZI via the FIIO Control App.
High-quality wiring - inside and outside
The JIEZI utilises high-purity palladium-plated oxygen-free copper, resulting in low impedance, low signal loss, excellent interference resistance, and stable transmission.
The flexible silicone and braided double outer jacket cable sheath make it flexible yet robust.
