Why is my Kevo Smart Lock beeping?

The lock should beep twice when it unlocks and once when it locks. It will also beep if there is a warning such as a low battery or a jammed bolt.
To turn the beeping sound off:

1.  Remove the battery cover.
2.  Move the third switch from the left (it has a speaker icon above it) to the OFF (downward) position.
3.  Reinstall the battery cover.