User's Manual

the menu key to enter and then choose the desired setting, using
the channel knob to choose Desired item ,press confirm key and
exit
Available values： 0.3s/0.5s/1s/1.5s/2.0s/3s
Key tone
Enter the menu , to choose the Key tone setting , short press
the menu key to enter and then choose the desired setting, using
the channel knob to choose Desired item ,press confirm key and
exit
Available values： on/off
Mic
Enter the menu , to choose the mic setting , short press the
menu key to enter and then choose the desired setting, using the
channel knob to choose Desired item ,press confirm key and exit
Available values： in hand/device hose
Delete noise function
Enter the menu , to choose the Delete noise setting , short press
the menu key to enter and then choose the desired setting, using
the channel knob to choose Desired item ,press confirm key and
exit
Available values: on/off
On: noise canceling on, can delete the background noise