Features
100% Brand new and high quality auto calibration microphone;
This item is compatible with for Sony Calibration Setup Microphone Mic ECM-AC2;
They are perfect replacement unit for home stereo system;
Easy to calibrate your Sony/DENON/Onkyo/Marantz Receiver with steps of speaker placement;
distance and adjustments, also makes a great full range mic for your computer so you can Skype, make calls with Google Talk, and record.