Pairing mode: long press, red, blue and fast flash is pairing mode
Chinese and English voice switching: When the red and blue lights alternately flash, press the power button twice.
Prompt tone: Boot prompt: POWER ON
Shutdown hint: power off
Pairing status prompt: paring
Connection prompt: you device is connect
Disconnect prompt: you device is disconnect
Low battery prompt: battery low
Button function: long press to power on, long press to turn off, click music pause / play / call answer / hang up the phone, double click the next song.