Retekess TT111 Manual Del Usuario página 5

Transmitter (Chest Model)
On-off operation:
●Turn on：Keep pressing the"M" button for
1 second to turn on.
●Turn off：Keep pressing the "M" button for
1 second to turn off.
The operation of mute function for
transmitter:
When the transmitter is working ,click the
" " button to mute(the antenna icon " "
on the display screen will change to mute
icon " " ),and click again the " " button
to restore the speak function.（the mute
icon" "will change to antenna icon" ")
Click one button to turn off all the receivers
Under the working condition,keep pressing the" "button
for about 5 seconds until the screen is flashing and the
word "OFF" appears,and all the receivers will be forcibly
turned off.(Note: Now you can click any button of the
transmitter to quit or keep pressing the "M"button to turn off.
The person in charge of the devices needs to know
how to set the channel:
(3)Why and when need to set the channel:
1, When there are two or more groups using the devices at
the same location,to avoid the interference between the
groups,you need to set different channels for the devices
(including both transmitters and receivers) of different
groups.
2,When you need to add more receivers to a group,and the
channel of these added receivers is not the same as that of
the devices of the group,you need to set the channel of
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