Settings127r TalkBack: Activate Talkback, which provides voice feedback.r Font size: Change the font size.r Negative colours: Reverse the display colours to improve visibility.r 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.r Enhance web accessibility: Set applications to install web scripts to make their webcontent more accessible.r Sound balance: Adjust the sound balance when using a dual headset.r Mono audio: Enable mono sound when listening to audio with one earbud.r Turn off all sounds: Mute all device sounds.r Tap and hold delay: Set the recognition time for tapping and holding the screen.Developer optionsChange the settings for application development.r Desktop backup password: Set a password to secure your backup data.r Stay awake: Set the screen to remain on while you are charging the battery.r Protect SD card: Set to request a confirmation when reading data from a memory card.r USB debugging: Activate USB debugging mode to connect your device to a computerwith a USB cable.r Allow mock locations: Allow mock locations and service information to be sent to aLocation Manager service for testing.r Select debug app: Select applications to debug and prevent errors when you pausedebugging.