Most laptops and phones already have a microphone or two.
If you record any audio or make calls with people outside your organisation, for the love of God, please invest in some sort of microphone upgrade. Even the $20 no-name Chinese microphones you get on Amazon are miles better than what is built into laptops.
... please ask your employer to invest in some sort of microphone upgrade. Unless you're self-employed, paying for work equipment is not your responsibility.