Evolve 40 MS Mono headset

Leatherette ear cushion. Noise-canceling, flexible boom microphone. A busy light on both the headset and control unit alerts others that you do not wish to be disturbed. USB & 3.5 mm audio connectivity. 70 Hz to 20 kHz Frequency response range. 6.1 x 2.3 x 7.1 in. Sold by each. Black.