The AKG Model C 414 B/ULS is designed around dual back-to-back large 1 in. (25 mm) gold sputtered diaphragms for multiple pickup patterns.
The microphone's pickup patterns are easily switchable among omnidirectional, cardioid, hypercardioid, and figure-eight. Additional flexibility in the studio operating environment allows a bass cut of 12 dB/octave below 150 or 75 Hz and pre-preamp attenuation of either 10 or 20 dB.
Here's a link to the full spec sheet >>AKG Model C 414 B/ULS<<