Settings103• Accessibility shortcut: Add a shortcut to Accessibility on the quick menu that appearswhen you press and hold the Power button.• TalkBack: Activate Talkback, which provides voice feedback.• Font size: Change the font size.• Negative colours: Reverse the display colours to improve visibility.• Text-to-speech output:– Preferred TTS engine: Select a speech synthesis engine. To change the settings forspeech synthesis engines, tap .– Speech rate: Select a speed for the text-to-speech feature.– Listen to an example: Listen to the spoken text for an example.– Driving mode: Activate driving mode to set the device to read contents aloud andspecify applications to use in driving mode.• Enhance web accessibility: Set applications to install web scripts to make their webcontent more accessible.• Mono audio: Enable mono sound when listening to audio with one earbud.• Turn off all sounds: Mute all device sounds.• Tap and hold delay: Set the recognition time for tapping and holding the screen.Developer optionsChange the settings for application development.• Desktop backup password: Set a password to secure your backup data.• Stay awake: Set the screen to remain on while you are charging the battery.• Protect SD card: Set the device to request a confirmation when reading data from amemory card.• USB debugging: Activate USB debugging mode to connect your device to a computerwith a USB cable.• Allow mock locations: Allow mock locations and service information to be sent to aLocation Manager service for testing.• Select debug app: Select applications to debug and prevent errors when you pausedebugging.