This microphone is inspired by and styled after the "Neumann U-47", which was modified by German Radio in the '70s to incorporate a glass triode tube. That modification brought it up to broadcast standards. The Peluso 22 47 has the additional feature of 9 polar patterns, controlled from the power supply. It captures the low frequency nuances of the original "47" with smooth mids and balanced highs. The microphone comes as a complete system, with Microphone in Wood Box, Power Supply, 7 Conductor Cable, and Shock Mount in Flight Case. Hand built in the USA.