Volume Adjustment
Turn and hold the knob to the left to decrease
the volume. Turn and hold the knob to the right
to increase the volume.
Audio Source Switch
When you have Bluetooth, USB drive and TF
card all on the device, follow the steps to switch
audio source. Press and hold the knob button
for 2 seconds, the screen will flash. Then press
the button again and hold for 2 seconds can
change to another audio source. (Voice indication
of the switch is successful.)
EN-07