Plantronics Calisto P610. ReconditionedIncludes 90 Days Warranty. . Product # 201859-01. . The Plantronics Calisto P610 is a compact USB speakerphone that integrateswith cellphones to easily manage calls and set up small informal conferences. It features single-touchcontrols which includes call answer/end, volume adjust and mute.. . The Calisto P610 features simplified call management with an easy interface on PC or mobile phone, noise cancellation, wideband PC audio and 360-degree microphone pickup. It includes a soft carrying case. . . Calisto P610:. . . . |Speaker / Computer Phone Dialer |6mm Omni-Directional Microphone |Digital Signal Processing Technology. Enriches Sound Quality