Sennheiser MK 4, large diaphragm Studio condenser microphone, extremely low noise, high SPL, Solid metal housing, cardioid, 20 - 20.000 Hz, 140 dB SPL max, 48-V-Phantompower (P48), diameter: 57 mm (max), length: 160 mm, incl. stand mount (elastic shockmount not included)