Mini Usb Microphone Microphone Laptop Voice Karaoke Recording Usb MicrophoneProduct Parameters: 1. Sensitivity: - 47db 4db 2. Sensitivity Reduction: - 3db At 1.5v 3. Working Voltage: 4.5v 4. Frequency Response: 100 ~ 16khz 5. Snr: More Than - 67db 6. Product Weight: 16g 7. Package Size: 13.5x11x1cmUsage Method:Plug And Play In Systems Above Xp, And Automatically Shield The Microphone Of The Built-In Sound Card Of The Computer (If Some Computers Will Not Be Shielded, Just Manually Switch Once)Functional Features:1. The Computer Usb Plug Is Suitable For Any Computer Model With Usb Interface2. 360 Omnidirectional, Anti Noise, Can Be Used As Computer Recording Equipment3. Applicable To: Online Chat, Msn,, Skype, Online Video Conference, Online Singing And Online Games4. Professional Network Microphone, Professional Voice Chat Tool, Plug And Play Without Any Driver, Portable And Practical.Product Features: 1. Cold Black, Color More Intimate 2. High Performance Microphone, Real Sound Reproduction 3. High Sensitivity, Effective Distance More Than 2m, Bid Farewell To The Limitations Of The Traditional 3.5-Needle Wheat Effective Distance Of 0.5m-1m 4. No Other Devices Are Required For Access And Recording 5. It Can Be Used With Any Computer With Usb Port (Including Apple). It Is Driver Free And Plug And Play Above Xp System. 6. Flat And Wide Frequency Response For Clarity And Clarity