Ideal for professionals—particularly VoIP users—the Vista™ M22 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 Vista M22 comes complete with a lightweight 10-foot coil cord for freedom of movement at your desk.