Plantronics Vista Headset Amplifier (M22)

Highly recommended for use with Plantronics H-Series headsets, Vista Universal Amplifiers connect Plantronics headsets to just about any modular single- or multi-line phone, and offer ergonomically designed volume, headset/handset, and mute controls. The Plantronics M22 features Clearline technology that normalizes sound, ensuring that bad phone frequencies don't transfer into your ear piece. Please note: The M22 comes with batteries. The AC adapter is available for purchase separately.