Plantronics RIG System, BK, EA EAST he Plantronics Calisto P610-M USB Portable Speakerphone provides crisp audio and an omni-directional microphone to instantly conduct a conference. This speakerphone connects to your Windows or Mac computer via USB and packs in a laptop bag or backpack. It sharpens the audio with wideband technologies and delivers natural-sounding voice with Digital Signal Processing. Furthermore, it offers multiple buttons that let you answer, end, or mute a call as well as adjusting the volume. This speakerphone has been optimized for use with Microsoft Lync to provide call controls with the Office Communications Server. Plantronics has also equipped the speakerphone with a Kensington style lock slot that helps prevent theft. Included with the speakerphone is a carrying case. Ease of Use and Portability Simplified call management with an easy interface Ideal for team calls in small and medium-sized work areas Compact, wireless design goes anywhere with included soft carrying case   Audio Quality Digital Signal Processing (DSP) provides natural voice sound and echo reduction Improves meeting productivity by reducing echo, cut-outs, and background noise Full duplex, conference quality audio with 360-degree room coverage Wideband audio for high-quality PC telephony   Connects To     PC or Mac via USB Compatible With     Windows or Mac OS Audio Performance     PC Wideband up to 6,800 Hz Full duplex audio Echo cancellation Noise-canceling Omni-directional microphone Security     Kensington style lock slot Dimensions (W x L x H)     4.33 x 4.33 x 1.26" / 11.00 x 11.00 x 3.20 cm