Setting item | Indicator | Instruction |
Brightness | Custom | Brightness level 0-100 Adjustable |
Working state | Constantly on | Red indicator on while charging. Red indicator off while fully charged and indicator display other working states. |
OFF |
The indicator colors corresponding to the different states of M21 are shown below:
Bluetooth codecs(Bluetooth receiving or transmitting modes) | LDAC | Green |
LHDC | Yellow | |
aptX-HD | Purple | |
aptX | Purple | |
AAC | Cyan | |
SBC | Blue | |
Local playback | Lossy | Blue |
SQ | Cyan | |
HR | Yellow | |
MQA | Purple | |
DSD | Green | |
Coaxial out or USB DAC mode | ＜48kHz | Blue |
≥48kHz | Yellow | |
DSD | Green | |
MQA | Purple |
Note: MQA support will be added in later firmware update.
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