FiiO

The JM21 doesn't support fast charging.It is recommended to use a 5V2A charger for charging. Battery capacity: 2400mAh Battery life: 12 hours (3.5mm s...

1. 3.5Output selection PO (Power output), generally used when connecting to earphones and speakers LO (Line out), generally used when connecting to power ...

1.Sample rate display With it turned on, the sample rate of the currently playing song will be displayed. 2. Dark theme With it turned on, the theme will...

1.System navigation Gesture, 2-button and 3-button navigation are available. 2.Power-off timers Sleep: when the set time is up, the JM21 will turn off au...

How to change the language on the JM21? 1. Go to the menu of Settings->System->Languages and input->Languages. 2. Tap "Add a language" ...

Setting item Indicator Instruction Brightness Custom Brightness level 0-100 Adjustable Working state Constantly on Red indicator on...

JM21 does not support DK1 Pro. If you really need to use it, you need to turn off the charge switch of DK1 PRO and try again.

How to use the FiiO Link Bluetooth function? There are mainly 3 steps. 1.On the FiiO Music app of the player, Settings->FiiO Link->┆ (on the upper r...

The AirPlay function will only be available when connecting the player to iOS devices but not Android devices. There are mainly 3 steps. 1.Make sure the pl...

The DLNA function means the player can read and receive music files stored on the device (name it Device A) which supports the DLNA function through WiFi....