Beurer HA 70 Pair Mode D'emploi page 59

IMPORTANT
Never insert the sound tube into the ear canal without an earplug. Make
sure also not to press the tube and earplug too deeply into the ear
canal.
Switching on/off
In order to switch the hearing amplifiers
on/off, press and hold the bottom control
button for three (3) seconds until you hear
two beeps.
59
Beep