I treated myself to a set of Peltor SportTac electronic ear defenders for Christmas. I chose these mainly based on past recommendations from shooters on this site but am wondering if mine may be faulty.
When I switch them on unless I have the volume switched right down low there is a distinct hissing sound that pulses slightly. Now I thought that they were able to actually amplify sound so as to be able to hear approaching game. I have contacted the manufacturers and suppliers and replaced the batteries with new as they have suggested but the result is still the same.
Am I expecting too much from these ear defenders or do those that own such items of kit think as I do that mine may be faulty and may need to be returned?