What are FIFA World Cup 2026 referees wearing around their heads and what is it really used for?

The FIFA World Cup 2026 has introduced advanced technology for referees, including microphones, earpieces, and the new Ref Cam. These tools help officials communicate with VAR teams and provide fans with a unique view of match action. FIFA and Lenovo have also developed technology to reduce camera shake. Referees can reportedly earn up to £75,000 ($100,000) during the tournament.