bietrun mic boom arm only for shure sm7b/mv7/blue yeti, upgraded mic arm desk mount with extension tube & hidden cable trough, universal pro-heavy duty metal microphone arm for podcast, video, gaming is up for auction in Musical Instruments. The current bid is $2.50, 94% below the $44.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.