Possible new item to add to the lineup

GunSport Elite - Etymotic

As a Law Enforcement firearms and tactics instructor, I have used this type of hearing protection for years and feel one big improvement over these would be the ability to integrate bluetooth technology with them to be able to communicate to officers while they move along a firing line or to call them with their scenario while they are entering the range much like a dispatcher.
Many agencies would go this route if the technology was more affordable per officer.