Manufacturer Part Number: UMM-6 Dayton Audio s UMM-6 USB measurement microphone matches the level of precision previously offered only by expensive measurement equipment. Key Features: 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 Dayton Audio UMM-6 USB Measurement Microphone 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 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 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. Specifications: 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. Product Details BrandDayton AudioModelUMM-6Part Number390-808UPC848791000119Unit of MeasureEachWeight2