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 Plus? 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 Clarity? 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.

Plantronics M22 Amplifier Features; 

? The M22 amplifier provides your best possible sound quality
? Great sound lowers listening errors, repeats, and listener fatigue
? Compatibility slide switch makes it work quickly with most phones
? Built-to-last provides a great return on your investment
? Coiled cable extends to give you 8-10 feet of reach
? Speaker volume dial to adjust your caller’s voice volume
? Microphone volume control so callers hear you perfectly
? Mute button to quickly shut off your mic for co-worker interactions
? Quick Disconnect allows you to easily disconnect from headset
? 2 AA batteries last for years – Optional A/C adapter sold separately