On May 11, 2009, the FCC issued a Notice of Apparent Liability for Forfeiture against a company in the amount of $7,000 for marketing wireless microphones without valid certifications. On May 15, 2009, the FCC entered into a Consent Decree with another company, ending an investigation of possible violations regarding uncertified FM modulators. As a result of the Consent Decree, the company voluntarily contributed $12,500 and adopted business reforms for future compliance. Under the FCC's rules, any radio frequency device must be authorized by the Commission through equipment certification procedures.

The Notice is available here, and the Consent Decree is available here.