Zoom presentation?

I will soon have a Zoom meeting where I have to present something. Since I've never done this before, I wanted to know if the sound is good when I do this on my phone. Should I also wear headphones (has no extra microphone), or not?

(My laptop broke, until the new one arrives and is set up, it can take 2 weeks)

Would say that it depends on how far you are from your device. If in doubt, you can test it once, I would then compare it to something like a call with handsfree.