A contact hearing protection device is provided. The contact hearing protection device comprises a perimeter platform, a chassis connected to the perimeter platform, a control system including at least one variable limiting element, and an umbo platform connected to the at least one limiting element. A sound level which meets or exceeds a predetermined level is detected, as can be indicated by an increased magnitude of movement of the umbo platform, and the limiting element increases the limiting in response to the increased magnitude of movement of the umbo platform.