Plantronics M22 Vista Amplifier

  • Used with Plantronics H-Series headsets
  • Speaker and microphone volume adjustments
  • AA battery powered (A/C adapter sold seperately)
  • Quick-Disconnect lets you unplug and walk away

Plantronics M22 Amplifier Benefits:

  • 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


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Ideal for professionals the Plantronics M22 Vista amplifier delivers precise levels of listening comfort, sophisticated hearing protection, and superior audio performance. The Vista M22 includes Clearline audio to improve call quality in any environment, especially wideband VoIP. The amplifier includes near-universal compatibility with single and multi-line telephones, as well as ergonomically designed volume, headset/handset and mute controls. The Quick Disconnect feature between the amplifier and headset lets you move away from your phone without removing your headset or disconnecting the call. The Plantronics M22 Vista amplifier comes complete with a lightweight 10-foot coil cord for freedom of movement at your desk.

Plantronics M22 Vista Amplifier Features:

  • Wideband audio. When used with wideband VoIP system, the Vista M22 delivers enhanced audio and more natural speech.
  • Loud noise protection. Reduces the level of incoming loud noises, such as fax tones or whistle blasts.
  • Advanced echo management. Helps reduce echo often associated with VoIP telephony.
  • Background noise reduction. Reduces the level of background noise picked up by the headset microphone, improving call quality.
  • Call volume equalizer. Maintains user-selectable listening preferences regardless of the quality of the incoming call.
  • Warranty: Two Years for Unsurpassed Durability
  • Volume Control: Speaker and Microphone
  • Mute Control: Push Button
  • Power: 2 AA Batteries (Optional A/C Power Adapter Sold Separately)
  • Compatibility: Any Plantronics H-Series Headset

Switch Setting Info:

1 = Very old phones (known as carbon phones – batteries not needed)
2 = AT&T Merlin
3 = AT&T Merlin
4 = Electret test setting (typically not usable)
5 = Most standard phones and default setting (batteries installed)
6 = Avaya Definity
7 = Cisco

The M22 amplifier is used by business professionals that require the best possible audio sound quality. It’s compatible with most phones, making your life much easier, versus using a Direct Connect cable, which requires determining compatibility and then hoping the volumes are adequate.