By Gregory Perrine Posted July 18, 2023 In shure-ptt-22023-07-182023-07-18https://avchicago.com/wp-content/uploads/2021/10/av_chicago-logo_lockup-color_inverted.pngAV Chicago®https://avchicago.com/wp-content/uploads/2021/10/av_chicago-logo_lockup-color_inverted.png200px200px 0
