Expressions used in this document
• Pages to be referred to are indicated as "
• The product illustrations may differ from the actual product.
• Unless otherwise indicated, illustrations in these operating instructions are of RB-HF520B.
Marks denoting model names
Functionality differences between models are indicated with the model marks below.
RB-HF520B: [RB-HF520B]
Accessories
Please check and identify the supplied accessories.
1 x USB charging cord
Maintenance
Clean this unit with a dry and soft cloth.
• Do not use solvents including benzine, thinner, alcohol, kitchen detergent, a chemical wiper, etc. This might cause the
exterior case to be deformed or the coating to come off.
Keeping the battery performance
• During the long period of disuse, full charge this unit once every 6 months to keep the battery performance.
Folding this unit
Fold the headphones as shown below. Improper folding may result in a malfunction.
• If the USB charging cord (supplied) is connected, disconnect it from the unit.
l
±±".
RB-HF420B: [RB-HF420B]
Before use
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