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Headsets for phones that do NOT have a specially marked headset port

All of the Plantronics headsets on this page include an amplifier/adapter that connects through your phone's handset receiver port. Your handset will, in turn, plug into the amplifier/adapter so you will still be able to use your handset whenever you choose.
Plantronics S12 Complete Headset System
Plantronics S11 Complete Headset System
Plantronics Binaural Supra Plus HW261N Noise-Canceling Headset with M22 Amplifier -- Complete!
Suggested List: $129.99
Our Price: $99.95 or less
Suggested List: $99.95
Our Price: $69.95 or less
Suggested List: $242.00
Our Price: $179.95 or less
Plantronics TriStar Headset with M22 Amplifier --Complete!
Plantronics Supra Plus HW251 Headset with M22 Vista Amplifier - Complete!
Plantronics Supra Plus HW251N Noise Canceling Headset with M22 Vista Amplifier - Complete!
Suggested List: $240.00
Our Price: $174.95 or less
Suggested List: $201.00
Our Price: $149.70 or less
Suggested List: $222.00
Our Price: $164.95 or less
Plantronics Convertible DuoPro H171 Headset with M22 Vista Amplifier --Complete!
Plantronics Convertible H171N DuoPro Headset (Noise-Canceling) and M22 Amplifier--Complete!
Choose Any H-Series Headset  with M22 Vista Amp (Click to see pricing)
Suggested List: $230.00
Our Price: $175.95 or less
Suggested List: $252.00
Our Price: $194.95 or less
P10 Plug Prong Adapter
Suggested List: $110.00
Our Price: $82.50