The Dayton Audio UMM-6 professional-quality USB measurement and recording microphone is designed to work with industry-standard third party recording and measurement software. The rugged construction and compact size make it the perfect companion for audio professionals who must work on-location performing acoustic analysis, monitoring audio levels, or recording. Each UMM-6 is calibrated individually using a laboratory-standard reference microphone, for consistent, repeatable PC measurements that match the level of precision offered previously only by expensive stand-alone microphones and measurement equipment. Works great with the Room EQ Wizard software. 
A carrying case with foam insert, 10 ft. USB connection cable, and a mini tripod mic stand are included with the UMM-6.  
Calibration Note: A unique serialized calibration file is available for the UMM-6. This calibration file can be used by most audio-analysis software. To obtain your individual calibration file, visit Dayton Audio's website where you will be prompted to enter the serial number from the body of your UMM-6. After entering the serial number, your download will start.

Precision condenser microphone for critical measurement and recording applications 
Connects to your PC or Mac via USB port 
True omnidirectional pattern and calibrated flat frequency response 
Rugged construction with high-quality components 
Compact design; includes sturdy carrying case with foam insert 
Compatible with most industry-standard measurement software

Capsule type: Precision 6 mm electret condenser  
Polar Response: True omnidirectional  
Frequency response: 18-20,000 Hz (Calibrated)  
Sensitivity at 1 kHz into 1K ohm: 10 mV/Pa (-40dBV, re. 0dB = 1V/Pa)  
Maximum SPL for 1% THD @ 1000 Hz: 127 dB  
S/N ratio: 70 dB (A-weighted)  
Connector: USB B female  
Weight: 148 grams.