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  I3c 

 Sound Isolating Earphones 

 These sound-isolating earphones 

with VoicePort inline microphone 

connect to both your cell phone 

and portable media player. The 

inline control switch allows you to 

easily transition from listening to 
music to answering phone calls. 

WideBand MicroDrivers deliver an 

extended frequency soundstage 

that you can now enjoy at low 

listening levels, even in noisy 

environments.

  

  INSERTING THE EARPHONES 

 

   WEARING THE EARPHONES 

  CHOOSING AN EARPHONE SLEEVE 

 Your earphones come with a selection of sleeves. Make sure the sleeve you 
use is easy to insert into your ear, fits comfortably, and is easy to remove from 
your ear. 

  Warning:  Do not push the earphone sleeve 
beyond the ear canal opening. 
  Make sure that the sleeve completely covers 
the earphone nozzle.  If any part of the 
nozzle is exposed, the sleeve is not properly 
installed.  

 When using the foam sleeves, compress the sleeve between 
your fingers before inserting it into the ear canal. Hold the 
earphone in place for about ten seconds while the foam 
expands and creates a tight seal. 

 Soft Flex Sleeves 

 In small, medium, and large sizes. Made from pliable rubber. 

 Foam Sleeves 

 Triple-Flange Sleeves (Optional Accessory) 

 If desired, the sleeve nozzle may be shortened. Use sharp 
scissors to carefully trim the nozzle to the desired length.

 Nozzle 

 Wax Removal Loop 

  When cleaning, do not force any object through the earphone nozzle! 
 This will damage the earphone sound filter.  

 ©2005, Shure Incorporated
27EN3210 (Rev. 2)

 Printed in U.S.A.

 Flex Sleeves 

 In small, medium, and large sizes. Made from translucent 
PVC.  

 Over the ear

in front

    INLINE SWITCH CONTROL

  Push and hold to MUTE cell phone microphone

  Volume

  Audio Source:

  cell phone

  media player

  Note: 

Turn volume control to its lowest setting before switching 

between music and cell phone.  Switching to media during a call 
mutes cell phone.

  CLEANING THE EARPHONE NOZZLE 

 If the nozzle of your earphone is blocked, clean the nozzle using the supplied 
wax removal loop.  

Left

right

 Wear the earphones as illustrated below. 

If the earphone seems to be lacking in low frequency response (bass), check 
the tightness of the seal between the earphone and your ear, or try one of the 
other sleeve options. 

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