Settings93AccessibilityAccessibility services are special features for those with certain physical disabilities. Accessand alert the following settings to improve accessibility to the device.• Auto-rotate screen: Set the interface to rotate automatically when you rotate the device.• Screen timeout: Set the length of time the device waits before turning off the display’sbacklight.• Speak passwords: Set the device to read aloud passwords you enter with Talkback.• Show shortcut: Add a shortcut to Accessibility on the quick menu that appears whenyou press and hold the Power button.• TalkBack: Activate Talkback, which provides voice feedback.• Font size: Change the font size.• 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.• 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.• Press 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.