I bought this new, but I've only used it once. From the internet: High Sensitivity for Clear Calls - This portable USB microphone uses a 6x10mm high-sensitivity condenser microphone to capture clear audio. The audio signal is processed through multiple volume amplifiers and an advanced ADC module, providing clear sound quality, reliable compatibility, and noise cancellation. It can clearly capture audio even at a distance of up to 10 feet (approximately 3 meters), so it's very small but powerful. Just connect it to your computer and you'll immediately have a high-quality calling experience. Plug and Play - The USB 2.0 interface is widely compatible with most computer devices and software (Google Meet, Zoom, Teams, Skype, etc.), including Windows, Mac, Raspberry Pi, Linux, and Chromebook. Just plug it into a USB port and you're ready to go. No additional drivers or settings are required. Compact & Portable - With a shape like a flash drive, it can easily fit in your pocket. You can carry it with your laptop and plug it in when you need it. You can maintain a simple and organized work environment without tangled cables or a large stand taking up space on your desk. Ideal Alternative Microphone - Perfect for those looking for a high-quality microphone for working from home, online meetings, online classes, live streaming, webinars, and more. While it's not a recording studio-grade microphone, the sound quality is better than many built-in laptop microphones and is sufficient for general needs.