If you are concerned abou tleaving the A100 earbuds out fo the case the A100 has APD (automatic power down) enabled. The length of time that it will take for the A100 to power off when they are detected as being inactive can be adjusted within the app. Auto power down will occur after 30 minutes or 60 minutes, or it can be disabled.
If the earbuds are left out of the case and remain inactive, they will power down automatically after the selected APD period.
To turn them back on, either hold down the touch control on each earbud for 3 seconds or place them back in the charging case before removing them again.
Note: APD requires the A100 to be detected as inactive and not in use. APD will still be activated on the ear buds even if they remain connected to a device.