The device may vibrate sometimes as part of gameplay effects for Android devices. The vibration feature can be toggled on or off in Options > Others > Turn on vibration
The changes won't be saved if you close the application after setting it up. Pressing the back button found on the lower left part of the screen will save the changes.
※The feature is not necessarily available on all Android devices
※This option will not be shown in the options menu for incompatible devices.