Get studio sound, like you've never heard before, with Neumann's Ball Swivel Mount f/5/8"-27, 1/2", and 3/8" Microphone Stands. This essential device can be found in major press conference studios around the world. It consists of two ball swivel mounts that accept active capsules, e.g. one Neumann AK 20 mic and one AK 40 parallel mic, setup atop each other for MS stereo recordings. Create an advanced sound environment, worthy of award. The best sound starts right here, with Neumann.