If You Give Talks for the Company

Don't become a spokesperson for the company or its product.
Honoraria can be used as incentives and incentives can compromise objectivity.
Keep your talks fair and balanced, i.e. don't just talk about a company's product.
If you are paid to give a talk, you need to disclose this to the audience during your talk, as well as disclose this in publications and public discussions of any of your research that is sponsored by the company or related to the company.