Owner's Manual

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Operation lcontinuedJ
Dual-Mode Switch
Automatic Protection + Blast Protection Mode (LO)
• No interference with natural hearing; soft and loud
sounds are heard naturally.
• Automatically delivers 15-dB of hearing protection
when steady-state noise exceeds safe exposure lim i ts.
• Blast protection
Enhancement + Protection Mode (HI)
• Amplifies soft and conversational sounds for
informed communication and increased awareness
of surroundings.
• No amplification of loud sounds .
• Blast protection
To switch between LO and HI operation modes,
briefly press the switch. When entering the HI mode,
the earplug will play two ascending tones; when
entering LO mode, two descending tones
will be played.
low Charge Warning
When the earplug battery is nearing the end of
charge, a repeating low frequency tone will be heard.
The interval between tones will become shorter as the
battery drains, before the unit completely shuts off.
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