3. For U-disc/TF Player mode
Insert your TF card/U-disc into the TF slot/U-disk port of the device, and
then press the "Mode Switch" button until it switches to the correct mode
(For a TF card, the word "sd" will appear on the display, and you will hear
a "SD Card Mode" sound notification; for a U-disc, the LED indicator will
display the word "usb", and a "USB Mode" sound prompt can be heard). The
music you save on your TF card/U-disc will begin playing automatically.
Bass Function
Press the "Bass" button to switch between normal and bass mode (On the
LED display, H0 means normal mode, H1 means bass mode).
Activate Siri/Google Voice Assistant
Press and hold the "Play/Pause" button for 2 seconds to activate Siri/
Google Voice Assistant.
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