It has been described as "very positive."
A trial allowing referees to wear body cameras during football matches has reportedly "changed the behaviour" of players and coaches.
They're being used at four county Football Associations in England, to deter abusive comments towards officials.
The tech can be activated at a touch of a button if they feel intimidated.
The FA says the feedback so far's been "very positive".

Tuesday Morning Sports Update
West Ham Face Crystal Palace In Tonight's Premier League
Edwin Edogbo Signs New Contract With Munster
Irish Women's Team Training Today Ahead Of French Rematch This Week
Snooker World Championships Continue In Sheffield Today
Historic Weekend For Athy Rugby Club As They Win 99th Bank of Ireland Leinster Towns Cup
Monday Morning Sports Bulletin
Kildare beat Laois & Into Semi Final