User Manual

Cleaning and maintaining the headset
22 | Presence
Cleaning and maintaining the headset
Cleaning the headset
왘 Only use a dry cloth to clean the product.
Storing the headset
If you do not use the headset for extended periods of time:
왘 Charge the built-in rechargeable battery every 3
months for about 1 hour.
왘 Store the headset in a clean and dry environment.
Replacing/removing the rechargeable battery
CAUTION
Liquids can damage the electronics of the product!
Liquids entering the housing of the device can cause a short circuit and
damage the electronics.
왘 Keep all liquids far away from the product.
왘 Do not use any cleansing agents or solvents.
CAUTION
Danger of damage to the product!
During the warranty period, the rechargeable batteries must only be
replaced or removed by an authorized Sennheiser service center, other-
wise the warranty will be null and void.
왘 Contact your Sennheiser service center if the re
chargeable batteries
need to be replaced or removed. Outside the warranty period, the
rechargeable batteries may be replaced or removed by any qualified
service center in an appropriate manner.