Headsets - Poly (Plantronics) - Mobile phone - DECT - Monaural (for one ear) - Ear clip - USB-A - Ear canal gel adapter - Directional microphone (Noise Canceling) - Rotatable in the range of 270° - Long - Short - Optimalised for Microsoft Teams - 160 - 180 - 180 - 20000 - 20 - 24