Vista M22 Audio ProcessorAdds 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.
Manufacturer's two-year limited warranty.