Tie-pin, or Lavalier microphones as they are widely known, are ideal for discreet use in broadcast interview situations, their compact dimensions ensuring that they do not draw the eye on camera. Their convenient size means that they are even used by some radio broadcast engineers, despite their appearance not being an issue in that medium.In studio environments, Lavalier microphones are commonly used without foam wind covers, but when recording interviews outdoors, Lavaliers are just as prone to the deleterious effects of the wind as any other microphone, and a windshield is required to prevent the wind rendering the interview audio unlistenable.