The miniDSP UMIK-2 is a reference grade, calibrated, omni-directional USB measurement microphone. The UMIK-2 features a low-noise ½-inch microphone capsule, low-noise A/D convertor, and support for sample rates from 44.1 to 192 kHz. Each UMIK-2 has a unique calibration file for measurement accuracy. A generated 90-degree calibration file is also provided for multichannel/surround-sound applications. The UMIK-2 has driverless operation with macOS, Linux, Android and iOS. A supplied ASIO driver for Windows ensures simple integration into many measurement and recording applications. The UMIK-2 is of course fully compatible with Room EQ Wizard (REW) and Dirac Live (version 3 and later). Many other applications are also perfectly suited to the UMIK-2: Speaker measurement and design Room corrections Acoustical measurement and characterization. For use with a PC the included coupon for downloading the ASIO driver is required. If you have any issues please contact your seller of miniDSP.