The Plantronics M22 amplifier brings superior sound-quality and acoustic protection to your telephone. As well as providing compatibility with those telephones that do not allow direct connection of headsets it offers a range of additional features to enhance the sound quality of your phone conversations.
Plantronics SoundGuard Plusâ„¢ technology ensures loud tones are quickly reduced to more comfortable levels and ensures that the normal, human voice remains natural and unchanged, for face-to-face clarity of communication. Plantronics Call Clarityâ„¢ technology uses electronic signal processing to reduce phone noise and maintain constant volume levels, as set by the user. This ensures all conversations are held at a comfortable and consistent level, regardless of the loudness of the incoming call.
2 year return warranty on telephones. End user to return with proof of purchase to Service Department, Plantronics Ltd, Interface Business Park, Binknoll Lane, Wiltshire. SN4 8QQ. Call 0800 410014