To Scroll you have to use 2 fingers
To select an option, you have to tap on the icon to highlight it and double tap the highlighted option to select it
Scroll to Settings, Accessibility, Talk Back and toggle the feature off
Talk Back is an accessibility feature for the visually impaired users and it indicates what screen or option you are on.
The Lenovo / Motorola Moto G4 Plus is also known as the XT1640, XT1641, XT1642, XT1643 and XT1644 depending on the market and configuration.
The Motorola Moto G4 is also known as the XT1620, XT1621, XT1622, XT1624, XT1625 and XT1626 depending on market and configuration.
Lastly the Motorola Moto G4 Play edition is known as the XT1600, XT1601, XT1602, XT1603, XT1607 and XT1609 depending on market and configuration.