The Plantronics M22 Vista Amplifier is universally compatibility with most single and multi-line telephones, as well as ergonomically designed volume, headset/handset and mute controls. When the Plantations M22 amplifier is used with any Plantronics H-series headset, you’ll have a commercial/business grade headset solution providing comfort and easy usability.
For more information visit, Poly M22 Vista Headset Amplifier
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