Alctron UM900 USB condenser microphone has a perfect cardioid pick-up pattern,standard and  general-used USB port. It can be can be used without installing any drive software when operating in the Windows systems and the computer systems, moreover, it can identify the recording equipments mac automatically. It is an perfectly  plug-and-play USB condenser microphone, which opens up possibilities for anyone who records audiofrom Podcasters, journalists, students, and multimedia presentations.

Specification:

* Type: USB condenser microphone 
* Capsule: 16mm back electret diaphragm capsule.
* Polar pattern: Cardioid
* Frequency Range: 320Hz~18KHz
* Sensitivity: -32dB (0dB=1V/Pa at 1kHz)
* Equivalent Noise Level: ≤22dB (A Weight)
* Max SPL: 136dB(at 1kHz≤1% T.H.D)
* Connector:: USB connector.
* S/N ratio:68dB
* Power Requirement: USB power
* Sampling rate: 16 bit,48KHz.