The 4050 Mono Ribbon Microphone from Coles Microphones is a single microphone that comes with a shock mount.
 
The 4050 features 30 to 20,000Hz frequency response and throughout this range, the shape of the bi-directional (figure of eight) polar response is maintained substantially, constant both in the horizontal and vertical planes.
 
With 4050 microphones, there is no discernible stray magnetic field. Each 4050 comes with its own unique shock mount which magnetically attaches up to two microphones and enables them to be used as a stereo pair or on their own. The microphone(s) can be rotated 360 degrees, allow a "Blumlein" (crossed figure-of-eight) stereo configuration.