Description: The USB telephone headset with microphone single-sided design, noise-canceling for call clarity, perform calls effortlessly in noise environment. 120 mic boom can be easily adjusted as your needs to pick up the best position, adjustable headband for different head size. The microphone designed with foam cover helps to noise cancelling, and soft ear cushion for all-day wear, light-weight headband for extended wear comfort. You can adjust the headset volume up/down or mute/un-mute the microphone instantly on headset,easy to access volume controls in the cord. USB plug headset computer microphone into your PC/laptop and it works. Good for work from home, video conference, online courses and call center. Specification: Type:USB Headset with Microphone Material:ABS Plastic and PU Sensitivity: 105dB Speaker Diameter: 30mm Distortion Rate:1 Frequency Response Range: 300 Hz - 6 KHZ (Hz) Wire Length:2.5mm Im