Customized wind screen for Bose Aviation X, A20 and Telex headset microphones. ***Please refer to the headset manual*** 1. Remove the old attaching band by rolling away from the tip of the microphone. 2. Gently pull the old wind screen from the microphone, 3. Remove the old attaching band, cut if necessary. 4. Slide-on the HeadphoneMate wind screen and ensure that it fits securely over the microphone. 5. Roll the included new attaching band over the new windscreen to the proper position.