When we use the Bluetooth® logo (for example on packaging), do we need to note any disclaimers? If so, what is the exact wording?

The proper trademark attribution wording is found on page 7 of the Bluetooth Brand Guide. The text can be translated into any language, however, the Bluetooth word mark should remain in English, unless using one of the approved translations. The company name, Bluetooth SIG, should always remain in English.