Features: Offers crystal clear voice capture on meetings calls, great noise reduction technology. The conference microphone with mute button,quickly mute/unmute by one press of the mute button. The microphone can catch the slightest 360 signal, make sound clearer and smooth like talking face to face. Compact portable design it stays perfectly on the conference room table without taking too much space. Widely application: Online meeting,business conference and negotiation,video/audio chat,call,gaming and more. Specifications: Best Using Range: 3-5m Input: 5V/500mA Material: ABS Packing Size: 10x10cm/3.93x3.93inches Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Package includes: 1xUSB Conference Microphone 1xUSB cable 1xUser manual