User Manual

8. Q: What do I do if Bluetooth can not close or open?
A: Please reset Bluetooth function of headphone by
inserting an audio cable into headphone
audio port,then removing it.Before re-connecting,kindly
remember to delete/ignore headphone bluetooth
pairing name NC75 Pro on your mobile phone.
A: Some customers have mentioned poor audio quality
on Windows PC.Please note that there are “Headset”
and “Headphone” modes you can toggle by changing
your output device.Selecting “Headphone Mode” will
drastically improve the audio quality.”Headset Mode”
is designed for highly compressed VOIP calls,etc.That’s
not the fault of headphone product,that’s just the
limitation of that protocol.If you are in “Headphone
Mode”,the audio quality is fantastic.
10. Q: Why can't I turn headphone on/off?
11. Q: Why does audio quality become poor on
Windows PC?
9. Q: Why does Bluetooth turn off when I connect an
audio cable?
A: This is one of our special features. When users insert
an audio cable into headphone audio port, all Bluetooth
feature buttons stop working and Bluetooth turns off.
But,Bluetooth will be available again when audio cable is
moved.
A: Please note that ANC and Bluetooth are indicated by
the same LED indicator light(but different light color),
with a green light for ANC and a blue light for Bluetooth.
If you need to turn Bluetooth on/off,you can turn off ANC
firstly in case that you make confused by the color
lights.But you will be very familiar with the light color
meaning after using few times because it is simple and
easy.
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