17 Nov 2022 at 22:24 #1 marl marl Soldato Joined 16 Jun 2004 Posts 2,797 Has anyone any experience of 'electronic whistles' and would you say they are reliable and loud enough for indoors use in a sports hall?
Has anyone any experience of 'electronic whistles' and would you say they are reliable and loud enough for indoors use in a sports hall?