Settings140● Accessibility shortcut: Add a shortcut to accessibilitysettings that appears when you press and hold the Powerkey.● Screen timeout: Select the length of time that the devicewaits before turning off the display backlight.● TalkBack: Activate TalkBack, which provides voicefeedback.● Install web scripts: Set applications to install web scripts tomake their web content more accessible.● Font size: Change the font size for creating or showingitems in applications.● Mono audio: Enable mono sound when you listen to audiowith one earbud.● Turn off all sounds: Mute all device sounds.● Tap and hold delay: Set the recognition time for tappingand holding the screen.Developer optionsChange the settings for application development.● USB debugging: Activate USB debugging mode toconnect your device to a computer with a USB cable.● Development device ID: View your device’s developmentID.● Allow mock locations: Allow mock locations and serviceinformation to be sent to a Location Manager service fortesting.● Desktop backup password: Set a password to secure yourbackup data.