Ring floodlight cam questions

Hi, its probably many people here with experience with the Ring floodlight cam. How is the volume of the two way comunication?
Is it loude so its easy to hear your voice on the outside?

If you connect the floodlight cam to smartthings, can you still do all the commands from Ring app?

I will connect the floodlight cam to Smartthings to use it as a motion sensor. Can I control the sensitivity from the Ring app, even its connected to St?