HP POLY M22 85T20AA Plantronics 43596-40 Headset Amplifier

HP POLY M22 85T20AA Formerly Plantronics 43596-40 Headset Amplifier Quick Disconnect Feature. The M22 Works with H-series HP POLY Plantronics headsets: H141, H141N, H251, H251N, H51, H51N, H61, H61N, H261, HW261, HW261N, H261N, H51N, HW251, HW251N, H41, H41N, H81, H81N, H101, H101N, HW510, HW520, HW530, HW540, HW710, HW720, H91, H91N, H361,H361N, H351N, H171, H171N, HW301N  and Addasound Crystal 2701, 2702, 2821, 2822, 2871, 2872 Headsets and more Clearline audio keeps incoming sounds at a consistent and comfortable listening level Echo management feature reduces echo often associated with VoIP telephony Utilizes the greater bandwidth offered by a wideband VoIP network to achieve clearer, more natural speech reducing miscommunication Quick Disconnect feature between M22 amplifier and headset allows you move away from your phone without removing your Plantronics headset or disconnecting the call Separate controls enable independent adjustment of incoming and outgoing volume Ergonomically designed volume, headset/handset and mute controls Ensures the most natural-sounding speech supported by the latest wideband developments and existing technologies in VOIP Protect your investment: supports the latest wideband developments while retaining backwards compatibility with traditional phone systems Connects with most single line and multi-line telephones Replaces M10, M12 Plantronics amplifiers Backed by a 2 Year Warranty M22 Product Sheet M22 USER GUIDE Plantronics Accessories Guide