User Manual45Sound on / Sound offn Go to Main Menu .o Choose Sound on if you want to listen to the voice instructions while younavigate. Choose Sound off if you want to turn off the voice instructions. For safety reasons, we recommend you to keep the sound switched on and listen to the voiceinstructions! This way, you can concentrate on the road ahead of you and avoid any unpleasantdriving situations!Map optionsDay colours / Night coloursn In Main Menu , select Map options .o Choose Day colours when navigating during the day (the device screen isbrighter).Choose Night colours when navigating during the night (the device screen is lessintense).