Unfortunately there isn't a windscreen for the Voyager Pro. It should cut out some of the wind noise because of the windsmart technology built into the microphone.  But of course, it won't cut out all of the wind noise.  If the headset isn't cutting out any wind noise, you may want to return to the Distributor where it was purchased for another one.  If that isn't an option, you can always package the headset up and include your return address, phone number and a copy of the receipt and send to:

Plantronics

ATTN: Service Center

345 Encinal Street

Santa Cruz, CA 95060

I found some lapel mic windscreens and put them over the boom and wow what a difference even driving with the window rolled down. I needed 2 to cover the entire boom cost 3 bucks for 4