your fingers until they are small. Insert the
earphones into the ears and hold the ear-
phones for at least 15 s econds so that the
compressed Visco foam can expand and the
earphones sit snuggly in your ears.
Ear hooks
▷ To provide strain relief for the cables, the
cables are guided over the ears. You can
carefully bend the ear hooks so that they fit
comfortably and securely, even if you wear
glasses, for example.
▷ Insert the earphones into the ears. Observe
the markings "R" (right; with additional red
ring) and "L" (left; with additional tactile
dots) for correct assignment.
2.
Selecting and connecting the connec-
tion cable
Stereo jack plugs on the device
• 2.5 mm, balanced signal transmission,
4-pin
• 3.5 mm, unbalanced signal transmission,
3-pin
• 4.4 mm, balanced signal transmission,
5-pin
MMCX connectors on the earphones
▷ Hold the earphones firmly and pull the
connectors straight out of the socket by
overcoming a slight resistance. Always
grasp the connectors by the connector
housing and do not pull on the cable!
▷ When connecting, make sure that the
markings "R" (right) and "L" (left) on the
connectors match the earphones. The right
ear canal phone is marked with a red ring
and the left ear canal phone is marked with
a tactile dot. Insert the connectors until they
lock into place.
3.
Optimum cable routing
4.
Cleaning the earphones
For reasons of hygiene, the ear adapters
should be replaced from time to time. (The
Visco memory foam ear adapters only have a
durability of a few months due to their mate-
rial properties). Spare parts are available from
your Sonova Consumer Hearing partner. To
find a partner in your country, search at www.
sennheiser-hearing.com/service-support.
▷ Clean the product only with a soft, dry cloth.
▷ You can clean the ear adapters under luke-
warm running water. Remove the foam pins
before cleaning. Let the ear adapters and
foam pins dry at room temperature for at
least 12 hours before reassembling them
and reattaching them to the earphones.
IE 900 | English
▷ To clean the sound channel grilles, use the
cleaning tool (supplied) to carefully and
lightly scrape over the grilles to remove dirt.
Loosen the dirt without piercing the grilles.
5.
Transporting and storing
6.
Pin assignment
7