Plantronics M22 amplifier brings superior sound-quality, acoustic protection and compatibility with those telephones that do not allow direct connection of headsets. The Vista M22 audio processor 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.

Features:

• Plugs into your telephone's handset port and connects directly to any Plantronics H-Series headset
• Provides compatibility with those telephones that do not allow direct connection of headsets
• Adjusts strong and weak calls to a comfortable level
• Reduces background noise heard by your caller
• Headset/handset selector and mute buttons
• Separate controls allow independent adjustment of outgoing and incoming volume
• Quick Disconnect between the adapter and the headset allows you to move away from your phone without removing the headset or disconnecting the call
• Supports wideband audio when used with the latest VoIP telephones
• Advanced echo management helps reduce echo often associated with VoIP telephony
• Powered by (2) AA batteries or external power adapter

Includes:

• Amplifier
• Cable Coil w/ Modular Plug
• Quick-Disconnect Cord

Not Included

• AA Batteries (Power Supply)

Compatibility:

• The Plantronics M22 Vista amplifier provides universal compatibility with most single and multi-line telephones

Alternative Part numbers:

• 43596-40
• 43596-41
• 43596-44
• 43596-64