Engineered specifically for GO 3 & GO3S , this windproof noise reducing sponge cover is accessory for clear recordings For action packed activity like mountain climbing, skiing, and cycling, where reducing Winds interferences is important for capturing sound For outdoor enthusiasts and content creators who demand superior sound in their recordings, even in Winds conditions The sponge ffectively minimizes Winds noise, optimizing your video captures have no adding weight to your devices Wear resistant and reusable, this Winds noise reduction sponge ensures that adventurers and photographers can consistently record clear sounds during their most dynamic moment