How to use mono audio in Android 7 Nougat

1. Open the ‘Accessibility Settings’: Settings > Accessibility. (See the article Open Accessibility Preferences on this website for more information.
2. Scroll down and tap the toggle switch next to ‘Mono audio’ to enable this feature. Fig 1
   
   Fig 1
3. Press your device’s ‘home button’ to return to the home screen.

Note: These instructions apply to the stock version of Android 7 Nougat.  Please be aware that many device manufacturers add their own customisations to the Android operating systems so you may find minor differences from the steps shown.