Bring digitally enhanced audio quality and the comfort of Plantronics headsets to Voice over Internet Protocol (VoIP) softphones with the Plantronics DA55 to DA60 upgrade kit. The kit upgrades the DA55 to a DA60 by providing inline volume and mute control and PerSono Pro 2.0 software to call center agents and supervisors for unparalleled control of voice and audio quality.
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