QCY T1 User Manual page 26

FUNCTIONS
Call
Accept / end a call
Brie y press the QCY button on the right earphone to
short press
answer a call. Press the button brie y on the left earphone
to end the call.
Switch audio output
If you want to use the speakers and microphone of your
press and hold
smartphone during a call, press and hold the QCY button
for one second. The headphones then turn o for the time
of the call.
Mute the microphone
2x press
During the call, press the multifunction button twice to
activate or deactivate the microphone.