1.Quick start guide, Windows USB DAC driver, FiiO Control Android version download link

Quick start guide download link: Click here

FiiO USB DAC driver download (For Windows computer): Click here

FiiO Control Android version download link: Click here

What is the difference between JIEZI A and JIEZI B?

The primary difference is the 3.5mm and 4.4mm audio interfaces. All other features and power specifications are nearly identical.

1.Please update the FiiO Control APP to the latest version first.(You could search from APP market or click this download link: Click here)

2.Connect the JIEZI to the Android mobile phone via the USB. In the FiiO Control app 'My product' page,choose JIEZI to enter JIEZI control page.

Note: The JIEZI could not be controlled via the iOS version FiiO Control APP.

3.How to use the JIEZI as a USB DAC for mobile phones?

The JIEZI can be connected to the mobile phone or PAD with Type C port via its Type-C cable.

Notes: 1. A compatibility issue may occur to certain Android mobile phones or music players due to system and hardware differences.

Some mobile phones are required to turn on the OTG function, so as to use the JIEZI normally. For detailed settings, please consult the support of mobile phones.

Some mobile phones may show the 'non-certified Type-C digital headphone' notification. You can ignore the message and use it normally.

4.How to use the JIEZI as a USB DAC for computers?

[Windows PC]

1.It runs drive-free in Windows 10 and above systems.

2.Install the FiiO USB DAC driver. It supports ASIO output for further DSD Native256. Please click the link here to download the driver: Click here

3.On the menu of settings - audio output device of the playback software, select "FiiO JIEZI" and then connect the JIEZI to the headphones to listen to music.

DSD track playback settings: Click here

[MAC computer]

MAC systems do not need a driver. If connecting to a Type-C port of the computer, you could use the JIEZI Type C edition. Please select "FiiO JIEZI" as the audio output device on the computer.

Note:If the computer does not have Type C port but the USB A port, please use an extra Type C to USB A adapter for connecting.

5.Does the JIEZI support in-line remote and microphone in the headphone?

Yes, JIEZI supports in-line remote control and recording. You could enable the in-line microphone function via FIIO Control APP.

Note: When using on the computer with FiiO USB DAC driver , due to the limitation of the driver, please disable the in-line microphone function to use it normally.

6.Can I connect the JIEZI with the NS or PS5?

Yes, the JIEZI supports UAC 1.0 mode.(You could switch the UAC mode via  the Android version FiiO Control APP.) So it is could work with NS or PS5 via USB connection.

7.How to customize the PEQ function of JIEZI ?

A: JIEZI has seven preset EQ: Jazz, Pop, Rock, Dance, R&B, Classical, Hip-Hop. It could also support 3 bands PEQ which can be adjusted to 10 frequency points for users to to adjust the appropriate curve.

iOS devices users can adjust the settings via Android device. The EQ can be saved after adjustment, which is also effective in iOS devices.

8.JIEZI fails to work when connecting to the computer?

Firstly, make sure that whether the device has been recognized normally: right-click on My Computer-Manage-Device Manager-Sound, video and game Controller

Does the device named JIEZI show? If not, it is possible that the device is damaged. Please contact support@fiio.com or your seller for help.

If JIEZI can be recognized but not output normally, please try the following steps:

3.5mm headphone with in-line remote control (TRRS) is connected to JIEZI :

When using on the computer with FiiO USB DAC driver , due to the limitation of the driver, headphone with in-line remote control is not compatible. Please check whether the in-line remote control headphone is connected? If yes, you could disable the in-line microphone function through the FiiO control app in your Android phone, and then you can reconnect JIEZI to the computer use it normally.

3.5mm headphone without in-line remote control (TRS) is connected to JIEZI : It can be plugged directly into a computer and is ready for normal use.

If the above methods fail to help, please contact support@fiio.com for help.

9.The volume gets lower when I turn on EQ?

When EQ is turned on, in order to avoid output distortion, internal processing will be done to reduce the gain. It is normal that the volume is lower comparing with EQ off.

10.JIEZI fails to play DSD?

The following methods can help you to solve the problem:

Make sure that the USB exclusive mode is turned on in the APP;

Check whether the audio source is correct. JIEZI supports DOP up to 128 and Native can up to 256. please check the settings of the playback software.

11.Calling is not supported after turning on in-line microphone function?

A: 1. Please check whether you are using an iPhone. The iPhone do not support in-line control calling due to limitation.

2. If it is not an iPhone, confirm whether FIIO Control has turned on the line control switch.

12.About the volume adjustment of JIEZI

The volume adjustment of JIEZI and the mobile phone are separate. You could adjust the volume via mobile phone or via JIEZI through the FiiO Control APP and get finer volume adjustment.