Plantronics Headsets versus Streamline Pro Have a look at this short video which is mainly aimed at the Contact Centre market but it clearly shows "resellers" that there are equivalent & better headset alternatives out there to Plantronics. This video shows you why the Streamline ProVX-M and ProVX-B is a worthy opponent to Plantronics. Headsets4business are exclusive UK suppliers of the Streamline Pro series of headset.