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Care and maintenance
PXC 550-II | 33
Care and maintenance
▷ Clean the parts of the product only with a soft, dry cloth.
Replacing the ear pads
For reasons of hygiene, you should replace the ear pads from time to
time. Spare ear pads are available from your Sennheiser partner.
1. Remove the ear pad from the hooks of the ear cup.
2. Attach the new ear pad by hooking the plastic frame of the ear
pad into the hooks of the ear cup.
3. Gently pull all sides of the ear pad to ensure that it is properly
hooked into all hooks of the ear cup.
Information on the built-in rechargeable
battery
Sennheiser ensures and guarantees that the rechargeable battery
performs at its optimum upon purchase of the product. If, upon pur-
chase or within the warranty period, you suspect that the recharge-
able battery is obviously defective or if a charging error/battery error
is displayed (> 7), stop using the product, disconnect it from the
power supply system and contact your Sennheiser service partner.
Your service partner will coordinate the repair/replacement with
you.
Do not return a product with a defective battery to your dealer or
Sennheiser service partner unless requested to do so.
Outside the warranty period, you can have the rechargeable battery
replaced for a fee by your Sennheiser service partner. Contact your
local Sennheiser partner: www.sennheiser.com/service-support
.
Installing firmware updates
Firmware updates can be downloaded free of charge from the Inter-
net using the Sennheiser Smart Control app. Sennheiser recom-
mends to always install the latest firmware version to ensure the
best performance of your product.
▷ Connect the headphones to your smartphone and start the Smart
Control app (> 16).
▷ The app provides information on available firmware updates and
guides you through the installation process.
CAUTION
Liquids can damage the electronics of the product!
Liquids entering the housing of the product can cause a short-circuit
and damage the electronics.
▷ Keep all liquids far away from the product.
▷ Do not use any solvents or cleansing agents.
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