Headsets - Poly (Plantronics) - No - Mobile phone - Zigbee - Monaural (for one ear) - USB-A - Ear canal gel adapter - Directional microphone (Noise Canceling) - Rotatable in the range of 270° - Optimalised for Microsoft Teams - 6 - 7 - 13 - 14 - 20 - 180 - 20000