SHURE VINTAGE Shure Model 533SA Spher-O-Dyne omnidirectional dynamic m

The listing

Shure Model 533SA Spher-O-Dyne omnidirectional dynamic microphone. [1] (https://pubs.shure.com/guide/533SA-SB/en-US)Here is a breakdown of what that text means:533SA (or 33SA): This refers to the Shure Model 533SA (part of the vintage Spher-O-Dyne series introduced in the 1960s).IL: This is the standard abbreviation for Illinois, where Shure's historic factory and offices were located (222 Hartrey Ave, Evanston, IL).WITH SWITCH: The "SA" model variant specifically includes a built-in On-Off switch on the handle (unlike the "SB" variant). [1] (https://reverb.com/item/90996428-vintage-1960-s-shure-533sa-dy33sc-pe53-dynamic-microphone-harp-mic-high-z-w-accessories-5), [2] (https://pubs.shure.com/guide/533SA-SB/en-US)Key Specifications of the Shure 533SA:Type: DynamicPolar Pattern: Omnidirectional (picks up sound equally from all directions)Frequency Response: 40 to 11,000 HzImpedance: High Impedance (High-Z)Features: Built-in spherical wind, breath, and "pop" filter, along with the sliding lockable on-off switch. [1] (https://pubs.shure.com/guide/533SA-SB/en-US), [2] (https://reverb.com/item/90996428-vintage-1960-s-shure-533sa-dy33sc-pe53-dynamic-microphone-harp-mic-high-z-w-accessories-5) EMAILS WITH CONTACT NUMBER WILL BE ANSWERED PROMPTLY!! CASH DEAL ONLY NO TRADES!!