Product description Material: metal Size: box size: 10.5 * 9 * 4cm Color: Black Channel: mono Built-in battery capacity: no battery Battery life: 1-3 hours Signal to noise ratio: 60dB Frequency response range: 20Hz-20kHz Input voltage: 5V Quantity: 1 piece Package Contents: 1 * USB Metal Desktop Conference Microphone 1. Excellent audio clarity: Plug and play, condenser microphone with high-density sound absorbing cotton make it clearer and smoother sound. The microphone can pick up sound from an all-round direction of 360 . Plus, it can capture the slightest signal and bring your voice back to life face-to-face. 2. Highest Performance: The microphone can pick up your voice 10 times better than a traditional computer microphone from a distance of 10 feet. You don't have to speak directly louder to the PC laptop microphone or repeat yourself over and over again. Just have a normal conversation. 3. Compact and Portable Design: Compact portable design, about the size of a small palm, so it stays perfectly on the conference room table without taking up too much space. Simply put the conference microphone in your pocket or briefcase. 4. Advanced cancellation technology: The built-in high-performance SMART CHIP can effectively block the noise and eliminate the echo. (It's just a microphone, not a speaker). 5. Multi-purpose use: online meeting, business conference and negotiation, video chat, skype, gaming and more. It is an excellent solution for anyone who has video conferencing and needs to record office meetings in the conference room / meeting room. Suitable for all occasions. Perfect for meetings, interviews, podcasts, home studio recordings, YouTube, Twitch, Skype, FaceTime, gaming and more.