If
your
headphone
has
no
sound
or
the
microphone
is
not
working
Please
make
sure
that
the
headphone
is
connected
Windows®
before
starting
software
Bluetooth
USB
Dongle
USB
macOS
Bluetooth
USB
Dongle
USB
Settings
System
Preferences
System
Sound
Sound
Output
Input
Select
"Srhythm
NC75Pro"
Select
"Srhythm
NC75Pro"
Output
Input
Select
"Srhythm
NC75Pro
Select
"Srhythm
NC75Pro
9
10
Hands-Free
AG
Audio"
Hands-Free
AG
Audio"