XIEGU X5105 Operation Manual page 6

21 Volume- key
Press the key in a short time to reduce current volume.
22 Volume+ key
Press the key in a short time to increase current volume.
23 PTT key
The radio will enter transmitting state by pressing and holding the key.
A T/R indicator light
It is green when under receiving state
It is red under transmitting state
The light will be red when charging under shutdown state. It will be green when charging if finished.
B DATA indicator light
It will be flickering under data communication state.
C LINK indicator light
The light will be turned on when main machine is connected with peripherals.
Panel Keys
5