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0521 IS-22220
MAINTENANCE
CLEANING
The earmuffs should be cleaned and disinfected with
soap and warm water. They must not be dipped into
water.
STORAGE
Before and after use, store in a dry place. The
temperature should not exceed 130°F.
BATTERY REPLACEMENT
Open the battery lid. Remove the old batteries.
Insert new AAA alkaline batteries into the battery
compartment in accordance with the instructions inside
the compartment. Ensure that the battery lid is closed
completely.
NOTE: Change batteries when sound
reproduction is weakened or impaired.
NOTE: New alkaline batteries provide
approximately 350 hours of operation.
1-800-295-5510
uline.com
