The Milab Vm-41 is a cardioid condenser microphone to feature. This is a micro cylinder with a diameter the same as that of an XLR. It is equipped with a small membrane. With the help of a device clear (a rotating ring just below the capsule (not detachable), it is possible to choose four filters: N = flat, V = High Pass, -10 = pad. We can turn the ring to be: N, N-10, V, V-10.
I have three that were my first purchases in condenser microphones. I had a choice between VM41 and C451, I did not hesitate. It's been probably 20 years that I have. These microphones have defects in their benefits. They are very chiseled. What may be nice for a Charles, an acoustic guitar, and even the overhead of the vote. Obviously, because they are carved, they are not very "couillus". More sensitivity to the static is not huge. They are also very susceptible to moisture.
In conclusion, I would say they are excellent auxiliary microphones.