3M Pro-Comms - BASIC OPERATIONS

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BASIC OPERATIONS
PRO-PROTECT PRO-COMMS ELECTRONIC HEARING PROTECTION
Headset will give a “Battery Low” warning every
20 minutes when battery voltage is low. Additional
warnings will occur as hearing protector powers
down. Replace batteries at this time.
After a period of inactivity for 4 hours, a 10-second
countdown will begin before hearing protector
automatically powers down. To reset Auto Shut-Off,
simply adjust volume. After Auto Shut-Off, press
and hold the power button for 3 seconds to turn
the unit on.
Low Battery Warning: Auto Shut-Off:
AUTO
SHUT-OFF
BATTERY
LOW
POWER/
BLUETOOTH
®
VOLUME