SALE PENDING I used this baby with my Scarlett 2i4 to take headphone measurements for reviews. It's awesome, super easy to use, and comes with its own calibration file to get perfect measurements. I had to sell my Scarlett 2i4, so I no longer have a way to use this mic (it needs phantom power). Includes everything it originally came with (box, hardshell case, stand mount, foam windscreen, calibration graph). Excellent condition--no known defects or imperfections. Looking for $45 (I'll pay shipping and PayPal). Friends+ get an even better deal. http://www.daytonaudio.com/index.php/emm-6-electret-measurement-microphone.html Quick Overview The Dayton Audio EMM-6 precision electret condenser microphone is designed for measurement and critical recording applications where extremely flat frequency response and a true omni-directional polar pattern is a must for accuracy. Product Highlights • Perfect for use with room acoustic analyzers and audio measurement systems • Low noise FET input reduces low-frequency distortion • Gold-plated XLR output connector for accurate signal transfer • High-quality components and rugged construction • Includes its own unique calibration response graph • Includes stand mount, foam windscreen, and transport case • Works with phantom power from +15V to +48V Product Manuals / Spec Sheets / Downloads Dayton Audio EMM-6 Quick Reference Guide Product Description The EMM-6 is a precision electret condenser microphone designed for measurement and critical recording applications. The extremely flat frequency response and true omni-directional polar pattern make it perfect for use with room acoustic analyzers and audio measurement systems. The EMM-6 microphone is individually hand calibrated using a laboratory standard Brüel & Kjær microphone in conjunction with a DAAS computer measuring system. Each microphone includes stand mount, foam windscreen, transport case, and its own unique calibration response graph.