Beta 1760/IR1600 Manuel D'instructions page 27

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BUTTONS
1 Up button (for EMS, HAL, LAL)
2 MODE button (for cycling through the mode loop)
3 Down button (for EMS, HAL, LAL)
4 Laser/Backlight on/off button (pull trigger and press button to activate laser/backlight)
1
MODE
2
7
4
3