Specifications:Computer System: Windows, Mac Best Using Range: within 3m Diameter: 2.3” Thickness: 0.55”(14mm) Weight: 3.2oz Cable Length: 0.55”(1.5 m) Input voltage: 3V Sensitivity: -40dB+/-3dB How to use? Plug in the computer, then right-click the speaker icon in the lower right corner of the computer. Then click the folder icon, and select to disable front panel jack detection. Finally, press the confirm button. Features: 1. Plug and play: no need to install software. 2. Small size & light weight: easy to carry.3. Metal material: more durable, stays where you put it . 4. Non-slip bottom: make the microphone more stable 5.3.5mm plug: wide compatibility, suitable for Windows and Mac. 6. Good sound collection: Sound can be collected from a long distance (within 3m).7.150cm super cable length for easy movement. High-quality wheat core can reduce noise and make the sound clearer. Package: 1* Conference Microphone with 3.5mm cable 1* Packing box