Poly Savi 7220 Stereo DECT 1880-1900 MHz TopPoly Savi 7220 Stereo DECT 1880 1900 MHz Top Move freely, get more done Help office workers be more productive its easier than you think. The Savi 7200 office series of DECT wireless headsets for desk phones are crowd pleasers that let workers roam far. Compatible with 800+ desk phones, theyre cost effective, too. Performance Control type Buttons Volume control Button Operating keys Answer end call, Mute, Volume +, Volume Product colour Black Headset