Retevis RT638 Operating Instructions Manual page 3

PTT button
Torch button
Moni/Down button
Microphone
CTCSS Code. Changes from 1 to 38 as selected by the user.
Displays the Battery change level. When the bars are reduced ,the battery needs recharging.
TX
Displayed when transmitting a signal.
RX
Disphayed when receiving a signal.
DCM
Disphayed when the Dual Watch function is turned ON.
VOX
Disphayed when the vox feature is enabled.
Torch
Speaker
Antenna
Earphone jacket
Lock button
Power/Menu button
Scan/Up button
Micro USB port
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