Portable wireless speakerphone For medium-sized conferences with up to 16 participants. Can be expanded up to 32 participants with the EXPAND 80 microphone. Choice of Bluetooth and USB-C offers flexible connection possibilities. Six long-range noisecancelling microphones with echo suppression and a low distortion speaker with crystal clear playback enable natural conversation in even challenging environments. Supported operating systems: Windows and Mac Range: up to 30 m LED indicators: Volume/mute, Bluetooth, in use Colour: Black/silver Optimised for UC Includes: Bluetooth speakerphone with USB-C cable, BTD 800 USB dongle, USB-C/USB-A adapter, universal AC adapter