User Guide
Page 2
... the above headsets. PORTUGUÉS ESPAÑOL FRANÇAIS ENGLISH ABOUT THE DUOPRO FAMILY OF HEADSETS The DuoPro™ family of headsets is an over-the-ear headset using a (N) noise-canceling microphone. 3 Models 161 and 161N are over-the-head headsets. 4 Models 171 ...and 171N are Polaris versions of the day. Polaris applies to meet the needs of users who use headsets most headset ready telephones. For compatibility questions please call the Plantronics Technical Assistance Center...
... the above headsets. PORTUGUÉS ESPAÑOL FRANÇAIS ENGLISH ABOUT THE DUOPRO FAMILY OF HEADSETS The DuoPro™ family of headsets is an over-the-ear headset using a (N) noise-canceling microphone. 3 Models 161 and 161N are over-the-head headsets. 4 Models 171 ...and 171N are Polaris versions of the day. Polaris applies to meet the needs of users who use headsets most headset ready telephones. For compatibility questions please call the Plantronics Technical Assistance Center...