You can easily save battery while you are sleeping.
Stop music and video at the specified time,
and saves battery during sleep.
* Stop playing music, video
* Turn off Wi-Fi
* Turn off BluetoothPermissions'Sleep Timer' is NOT collect any personal information.
* permission about Wi-Fi : Turn off Wi-Fi
* permission about Bluetooth : Turn off Bluetooth
* control vibration : For vibration.Contact[email protected]