Etymotic etyBLU2 Headset - Manual (Page 12)

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Changing the Filter
The earpiece in the etyBLU2 headset has a special filter that
smoothes the frequency response and prevents earwax from
entering the earphone.The filter is located at the end of the
earphone and is visible when the eartip is removed.
Change the filter if loudness decreases or the sound quality
declines. Note: Filters are not reusable.
Filter Removal
Note: Use the tool to remove the filter.
Filter Replacement
Note: Do not use the tool to replace filter.
1. Remove eartip. 2. Insert tool into
the filter.
3. Remove filter.
1. Insert a new filter and press
gently against a hard surface
to secure it in place.
2. Re-attach eartip.
Care
• Do not expose to extreme temperatures.
• Avoid dropping and strong impact.
• Leave eartip on the headset for shock protection.
• Clean or replace eartips prior to use by others.
Over time eartips may lose their elasticity. For best performance
and retention, replace 3-flange eartips every 3-6 months. Replace
foam and glider eartips regularly.
To clean the 3-flange eartips:
1. Remove the eartip from the headset.
2. Clean with water and mild soap.
3. Dry the eartip before placing it back on the headset.
Cleaning and Replacing Eartips