Retekess TT126 Manual página 5

2.Headphone volume adjustment: When the
screen is locked, press the "+" or "-" keys to
adjust the headphone volume. There are 9
levels of volume in total.
3.Channel adjustment: In the unlocked state,
press the "+" and "-" keys to adjust the number
of channels.
4.Microphone volume adjustment: When
unlocked, the mic button is used to adjust the
microphone gain, which can be adjusted from 1
to 7 levels. The higher the level, the wider the
range of sound collection, and the greater the
impact of environmental noise.
5.Unlock/lock screen: If no button is pressed for
30 seconds, the screen will automatically lock
and the lock icon will appear on the screen.
After locking and continuing without operation
for 30 seconds, the screen will turn off without
affecting normal use. When a key is pressed,
the screen lights up again. When you need to
unlock, press and hold the lock button for 3
seconds to unlock.
6.One-click pairing: The product is set to follow
automatically. Under normal circumstances, the
receiver will follow the transmitter channel, and
the screen will display CHS. If the automatic
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