Headsets - Poly (Plantronics) - Monaural (for one ear) - JACK 3,5 mm - USB-A - Leatherette cushion - Directional microphone (Noise Canceling) - Rotatable in the range of 270° - Rotatable in the range of 300° - Tilting - Universal compatibility - 50 - 50 - 20 - 50