Omnidirectional microphone and enhanced speaker: The microphone has 360 degree omnidirectional high-sensitivity pickup, covering 3 meters/10 feet of meeting space. With the help of voice optimization technology, your voice will be automatically balanced to compensate for the difference in volume and distance from the microphone.     Excellent sound quality: Through our innovative noise reduction technology, background noises such as air conditioning, keyboard, mouse, chair pulling, etc. are completely eliminated, ensuring remote participants enjoy crystal clear sound quality.     Convenient buttons: When multitasking during a call, you can easily mute the microphone with a single contact, making the meeting more efficient.     Perfect for home offices: connect it to your computer with a USB cable, no driver installation is required. The conference microphone is compatible with all popular online conference platforms, such as Zoom, Skype for Business, WebEx, etc., plug and play      Lightweight and portable design: The conference hands-free adopts a lightweight and portable size design, intelligent noise reduction technology, carry it with you, and hold meetings anytime, anywhere.     This microphone is plug-and-play, very convenient to use, and stable in transmission. It is very suitable for voice conferences, network transmission, network classrooms and other occasions.     Features: 360 degree omnidirectional     Product channel: mono     Product weight: 160g     Sensitivity: -40+/-3dB     Frequency response range: 100-16000HZ     MAX sound pressure ratio: 110db     Signal to noise ratio: more than 58db     Interface type: USB 2.0     Cable length: about 2 meters     Microphone use: general purpose for notebooks and desktop computers     Type: 2 / 1     Colour: black     Material: zinc alloy + metal     Size: 70x15mm     Package Contents:     1 * USB microphone:     1 * USB microphone          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.