The Plantronics Calisto P610 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. The Unified Communications speakerphone is designed to work with UC applications as well as softphones. Plantronics has also equipped the speakerphone with a Kensington style lock slot that helps prevent theft. Included with the speakerphone is a carrying case.