The miniDSP UMIK-2 is a calibrated, omnidirectional USB measurement microphone with reference quality. The UMIK-2 features a low-noise ½-inch microphone capsule, low-noise A/D converter and support for sampling rates from 44.1 to 192 kHz. Each UMIK-2 has a unique calibration file for measuring accuracy. A generated 90-degree calibration file is also provided for multi-channel/surround sound applications. The UMIK-2 features driverless operation with macOS, Linux, Android and iOS. An included ASIO driver for Windows ensures easy 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 above). Many other applications are also perfect for the UMIK-2: speaker measurement and design Room corrections Acoustic measurement and characterization. For use with a PC, the included coupon to download the ASIO driver is required. If you have any problems, please contact your seller of miniDSP.