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. UM900 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: %u226422dB (A Weight) * Max SPL:%uFF1A 136dB(at 1kHz%u22641% T.H.D) * Connector:: USB connector. * S/N ratio:68dB * Power Requirement: USB power * Sampling rate: 16 bit,48KHz. UM900 USB MIC for Mac,Pc,iPad,iPhone.