How to use the Xiaomi Desktop Speaker?

The product appearance is illustrated below:
On the top, there are an Action Button, a Lighting Button and a Microphone. In the rear, there are an AUX IN port (3.5mm TRS jack) and a USB Cable. At the side, there is a Muti-function Button.

The button operations are listed as below:
ButtonMulti-function ButtonAction ButtonLighting Button
PressTurn on the speaker
Play/Pause music
Answer/End a call
Switch sound effectsSwitch RGB light effects
Press rapidly in successionPress twice: Play the next track, or switch between incoming calls
Press thrice: Play the previous track
Press twice: Switch between audio channels/
Press and holdPress and hold for 2 seconds: Tum off the speaker or reject a call
Press and hold for 8 seconds: Restore factory settings
Press and hold for 2 seconds: Enable the Bluetooth pairing modePress and hold for 2 seconds: Enable/disable RGB light effects
RotateClockwise: Increase volume
Counter-clockwise: Decrease volume
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The indicator instructions are listed below:
There is an LED Indicator on the top of the product, and an RGB Light Strip at the bottom.
LED Indicator Description
Indicator statusSpeaker status
Keeping in whiteBluetooth connected
Blinking in whiteBluetooth pairing
Blinking in orangeCharging
Keeping in redDevice error
RGB Light Strip Description
Indicator statusSpeaker status
Breathing in whiteIn-call
Blinking in whiteIncoming call
Breathing in orangeSleep mode