The Dayton Audio iMM-6S is a professional quality measurement and recording microphone designed to work with iDevices (iPad, iPhone, iPod) as well as Android and Microsoft devices with a 3.5mm TRRS jack. Its rugged construction and compact size make it the ideal companion for audio professionals who need to work on location to perform acoustic analysis, monitor audio levels or record. Each iMM-6S is individually hand-calibrated using a standard laboratory measurement microphone, for consistent measurements that match the level of accuracy previously offered only by much more expensive stand-alone microphones.