Sleep Timer(for falling asleep)

Đây là một ứng dụng khóa màn hình đơn giản.

This application automatically mutes the music volume after the specified time and puts it in screen lock state.

Please use it when you fall asleep viewing Youtube on the browser etc.

This app uses the Device Administrator permission.

* Activate device admin app for screen lock.

* Deactivate device admin app when you will uninstall.