Etymotic Research Noise-Isolating Earphones HF5 دليل المستخدم

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High-fidelity
Noise-isolating earphones
™
ACCU•Driver high performance,
balanced-armature drivers
are specified for an accuracy
response of 85% or better.
U s e r M a n u a l

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Caution In rare instances an eartip may come off in the ear canal when removing the earphone. If this should occur and the eartip cannot be easily removed, it is recommended that you promptly contact an audiologist or other medical professional. A professional can use blunt tweezers to remove the eartip. Consult an audiologist or physician if you have excessive ear wax, difficulty inserting the eartips, or discomfort after prolonged use. Etymotic earphones exclude most external sounds. It is uns

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Included • hf5 earphones ™ • Assortment of ACCU•Fit eartips ™ • ACCU•Filter wax filters with removal tool • Pouch Identification B A C A. Earphones B. Cable slider C. 3.5 mm stereo plug 3

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Care • Do not expose the earphones to extreme temperatures. • Avoid dropping and strong impact. • Leave eartips on the earphones for shock protection. • Do not pull on the cord to remove the earphone from the audio device or the ear. • Clean or replace eartips prior to use by others. Cleaning and Replacing Eartips 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 3-flange

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Selecting an Eartip 3-Flange Foam Glider standard large The eartip that is most comfortable is the likely choice, but it MUST SEAL well in your ear. If you can easily hear others when the volume is off, you don’t have a good seal. Twist it in deeper, or choose another eartip. When changing eartips make sure the eartip fits securely on the stem of the earphone. correct incorrect 5

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Proper Insertion Important: Sound quality, full bass response and noise isolation all depend on a good eartip seal in the ear canal. See a video demonstration at www.etymotic.com. • Carefully insert the earphone while pulling up and out on the back of the ear. • Twist the earphone up into the ear canal while inserting, until outside noise is blocked out. • 3-flange eartip: Moistening eases insertion. • Foam eartip: Roll down or compress foam eartip before inserting. Hold the eartip in place for

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ACCU•Filter Wax Filters ™ Etymotic earphones have special ACCU•Filter wax filters that smooth the frequency response and prevent ear wax from entering the earphones. An ACCU•Filter is located at the end of the earphone and is visible when the eartip is removed. If a filter becomes clogged, it should be replaced. A dirty ACCU•Filter will reduce earphone output. The filter should be changed if loudness decreases or the sound quality declines. Note: ACCU•Filters are not reusable. ACCU•Filter Remova

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Etymotic Research Inc. Etymotic Research has spent over twenty-five years developing in-ear technology for auditory research, precision monitoring and critical listening. Etymotic has developed many innovative hearing technologies available today. Etymotic’s products are used by musicians and others who insist on superior sound quality. Etymotic means “true to the ear.” Warranty Etymotic Research, Inc. warrants this product against defects in material or workmanship for a period of two years fro