Features: 1.Hold meetings anytime, anywhere, portable and compact design allows you to hold unlimited conference calls at any location 2.Quickly mute and cancel the mute through the built-in mute button, anti-folding shielded cable, and USB gold-plated head. Built-in noise filter sponge 3.Dynamic noise cancellation technology can effectively block noise, which is better than traditional computer microphones 4.The omnidirectional mode will pick up the sound from all directions, and the condenser microphone can capture the smallest signal sensitivity, and vividly reproduce your voice as if you are talking face-to-face 5.Microphone interface USB plug, directly plug into the computer USB interface to pick up the sound specification:Item Type: Microphone Sensitivity: -38dB3dB Impedance 2.2K Frequency Range: 50Hz-16KHz PackageList: 1 x Microphone 1 x User Manual