Hi @kerdagoan.
Welcome and thank you for posting here at the Roku Community!
We appreciate you for reaching us regarding your questions about the features that your Roku streaming device have.
A Roku device may continue to stream unless the device is returned to the Home screen before you turn your TV off.
However, there is a feature called Bandwidth saver to help you avoid using too much of your data and here's how to enable it:
- Press Home on your Roku remote
- Scroll and select Settings
- Select Network
- Select Bandwidth saver
- Choose On
Here's the Support link for further details: How to use Bandwidth Saver to avoid going over your internet data cap
If you have any questions, don't hesitate to let us know and we'd be more than happy to continue assisting you.
All the best,
Carly
Carly Y.
Roku Community Moderator
