miniDSP UMIK-1 USB Measurement Calibrated Microphone Calibrated measurement microphone for audio system tuning Unique calibration file for each product with sensitivity (SPL monitoring), Frequency Plug&Play driverless installation for Windows, Mac, Linux and iDevices ompatible with all acoustic software inc Dirac Live, REW, Smaart. Compatible with Ipad + CameraKit Mini tripod, USB cable, windscreen included in sturdy padded transport case