Sofamel D-Tueri PRO Mode D'emploi page 23

Start-up
1
Before using for the first time, it is recommended to charge the
device until it passes from the red CHARGE display to the blue
FULL display.
2
Press TEST
sounds
Always press the TEST button after charging and after placement in
the helmet.
T
and check that the intermittent acoustic signal
and that the GREEN LED
A
A
for ON remains lit up.
23