ONE NEW old stock Amphenol (Wire-Pro) 91-MC4M 4-pin microphone plug with pin contacts compatible older microphone by Electrovoice, Shure, and other manufacturers. Fits select models such as Electo Voice 664 (as pictured for illustration purposes only), Shure 545s, and others. Strain relief spring accommodates cables up to 3/8" OD. 

Picture is of stock connector and may not represent actual connector. 

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