This is possibly a bit out there for blank canvas but thought that there may be some knowledgeable people who can possibly assist.

So I have attached some images of what looks to me like a small PA speaker . My colleague uses these as a mic I suppose. They are wired up to allow shooters to activate the trap. The issue is that they seem to be very susceptible to damp and regularity fail. It’s apparently a common fault and other shoots use the same methods.

So has any body any ideas to find a more reasonably priced alternatives or some alternative that is more weather resistant.

Sorry this a bit of a strange query but there is a vast knowledge pool out there so worth a try

Thanks

ColinIMG_2252.jpgIMG_2252.jpgIMG_2251.jpg