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ER4 MicroPro™ Earphones |
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ER•4 Instructions For Use
Eartips
The earphones fit into the ear
canals with either soft plastic flanged eartips or foam eartips. The plastic
eartips can be cleaned and reused.
Important:
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For best performance and the most solid bass response, the eartips must be
inserted deeply in the ear canals.
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If one or both earphones stop working or has reduced volume, change the
earphone filter. See Changing Filters
for detailed instructions.
Insertion and Removal of Eartips
View
Earphone Insertion Video
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For best results, moisten the white soft plastic eartips before insertion.
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Using your right hand, grasp the eartip with the red plug.
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With your left hand, pull up and back on your right ear to straighten your ear
canal.
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Carefully insert the right earphone so that it seals deeply and comfortably in
your ear.
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Repeat procedure for the left ear, using the earphone with the blue plug.
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Remove earphones slowly with a twisting motion to gradually break the seal.
Foam Eartips
If a good seal cannot be obtained with the white plastic eartips, use the black
foam eartips supplied with the earphones.
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Firmly grip the white eartip with one hand and the earphone with the other.
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Remove the eartip from the earphone, and replace it with a black foam eartip.
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Compress the foam eartip by rolling it between your fingers.
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With the opposite hand, pull up and back on your ear to straighten your ear
canal.
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Carefully insert the earphone into the ear canal, holding it in place until the
foam expands to produce a seal.
Proper Earphone Use
When used correctly, the ER•4 MicroPro earphones will provide excellent
performance and high quality audio. Because the ER•4s provide exceptional sound
reproduction and unrivaled isolation from outside sounds, high playback levels
are unnecessary.
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Set the volume control of the audio source to minimum.
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Insert the 3.5mm earphone plug into the headphone jack (a 1/4" adapter is also
supplied).
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Set the volume control to a comfortable listening level.
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Do not use insert earphones while driving a motorized vehicle, operating
machinery, bicycling or jogging, because you may not be alerted to potential
danger.
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Do not use the earphones at excessively loud levels.
Care of Earphones
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Do not expose earphones to extreme temperatures.
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Avoid dropping or strong impact.
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Keep earphones away from water and dust.
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Do not pull on the cord to remove it from the jack or the ear.
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Avoid bending the barrel in the center of the cord.
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Clean the white plastic eartips prior to use by others.
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Replace disposable foam eartips regularly.
Cleaning the White Plastic Eartips
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Firmly grip the eartip with one hand and the earphone with the other.
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Carefully remove the eartip from the earphone.
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Use warm water and mild soap to remove dirt and earwax from the eartip. Do not
get the earphone wet.
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Rinse and completely dry the eartip before placing it back on the earphone.
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Push the eartip on the stem until it rests on the large edge of the barrel.
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ER4 MicroPro is a trademark of Etymotic Research, Inc. The ER•4 MicroPro Earphones are covered by one or more of the following U.S. patents: #4,677,679, #4,763,753, #5,887,070, RE38351, RE40696 and other patents pending.
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