Pack of 6 Stainless Steel Metal Referee Sports Whistle - Coaches Referees Sports
𝐒𝐔𝐏𝐄𝐑 𝐋𝐎𝐔𝐃: When you blow it, it vibrates at a better frequency, inflicting the whistle to emit a louder sound. The crisp sound calls for much less breath than conventional pealess whistles.