A: What microphone is better to record an acoustic violin? What is the minimum cost of a microphone that will give a more or less decent sound? Naturally, it should transmit high frequencies well, but at low frequencies (less than the salt of the small octave, hz, as much as it is in hertz) you can actually hit. And yes, the soundtrack is normal, built-in, no new money
B: If the speaker is built-in, then the genius microphone is best suited for 80 rubles. You can try to find a B for 50.