Plantronics Vista M22 Amplifier 43596-64
Adds value to standard and wideband VoIP as well as PBX phone systems. Clearline audio technology improves call quality, enhances speech clarity, reduces background noise and equalizes volume. Quick Disconnect feature lets user walk away from the phone without removing the headset or losing the call. For Use With: VoIP and PBX Phone Systems Accessory Type: Audio Processor.