Yes, your Tarah Pro earbuds will turn off automatically when they are connected to your Bluetooth audio device and have been in an idle state for 15 minutes (i.e.not playing music or in a phone call).
Your Tarah Pro will also turn off, after 15 minutes, if not connected to your Bluetooth audio device.
When the earbuds are snapped together they disconnect from your audio device and re-connect when you pull the earbuds apart. If the earbuds are left snapped together for 15 minutes or more, the earbuds will power off.
This feature helps conserve the earbuds battery when you are not actively using your earbuds.
To re-connect your earbuds after they have turned off: