The Jabra Speak2 40 MS USB-A & USB-C Speakerphone 2740-109 is a Microsoft-Certified portable speakerphone that provides next-generation professional audio. It is designed and engineered with advanced full duplex audio to let everyone on the call speak and be heard at the same time. It also features four ultra-advanced beamforming microphones - more than ever in a Jabra speakerphone - and powerful noise-cancellation technology.