Continuous is not an option lol...

If I set my voice mode to Push-to-Talk, other users say I'm breaking up even though I wait a full second to speak after pushing the button...and I hold it down firmly.

If I set my voice mode to Voice Activated, they are saying there is an echo.

Where can I find more control over audio levels? I found it last I can't.

PS: Please make a guide or video tutorial for the iOS app.