The FLEA 47 mic is an exact replica of the U47. It is equipped with F7 capsule - FLEA's exact replica of M7 capsule, their replica of BV8 transformer and TELEFUNKEN EF12 tube. In fact, they are the same tubes with different heating. FLEA consider the EF12 tube's sound character closest to the original. Of course, the price depends on the type of tube. The body is duraluminium and is nickel plated. The whole set comprises the mic in wooden box, cable, shockmount and power supply.