How can I remove the sticker on the base of Whisper Flex (ultimate)?

1. Mix (cleaning) vinegar with lukewarm water in a ratio of 1:10.
2. Use this mixture to clean the required parts.
3. Then carefully brush the surface with the adhesive residue until it disappears.
4. Use a damp cloth with tap water to remove any residue.

Do not use caustic or other chemical agents. This may damage the lacquer and is not covered by the warranty.