EPOS Sennheiser EXPAND 80 Bluetooth Wireless Conference Speakerphone - Speaker: Neodymium Ring Magnet - Frequency: 50 ~ 7500 (Comms), 50 ~ 20000Hz (Audio Streaming) - Microphones: 6x Digital MEMS Omnidirectional - Microphone Frequency: 150 ~ 7500Hz - Connectivity: Bluetooth 5.0, USB-C - Wireless Range: Up to 25m / 30m (LoS) - Includes: BTD 800 USB Dongle, USB-C Cable, USB-C to USB-A Adapter - EPOS Voice Technology - Optimised for UC - 1000202 - 2 Years Limited Warranty