EPOS / Sennheiser EPOS Expand 40

Portable speakerphone for PC/Mac, mobile and tablet Up to 8 participants Full-duplex HD audio technology 3-mic beamforming array with noise cancellation Low-distortion loudspeaker Long-lasting battery: 18h talk time Connectivity: USB-C; USB-A (adapter) Bluetooth UC-optimized product: compatible with all softphones on the market