Proactive Libera Instructions Manual page 11

After Treatment
7. The unit will stop automatically after 20 minutes of treatment.
The treatment can also be stopped at any time by pressing the
" On / Off " button. The LED will then flash 3 times and three
"beeps" will sound to indicate that the unit has been turned off.
Note: To preserve the battery and prevent unexpected shock,
the device will default to the lowest intensity level when not
used on any treatment area, and will automatically turn off
after 20 minutes.
8. Place the clear plastic liner back on the gel surface to preserve
adhesiveness and store the TENS unit in its plastic case until
next use.
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