Reduce wind noise while recording with your VIRB or VIRB Elite in high wind conditions with this replacement wind block.
The wind block attaches (with a tiny screw) to the back end of the camera's cradle, and covers the microphone hole at the rear of the camera.
The wind block holds a little piece of foam which covers the actual microphone aperture. (You can see the foam protruding from the center of the body.)

Some people find that the foam, and even the wind block without the foam, muffles the sound too much, and choose not to use them.
You'll have to experiment to see what you prefer.

Includes 3 per package, and screw for easy installation. (Requires a VERY tiny slotted jeweler's screwdriver.)