How do you change the battery and set a precision talking watch?

To change the battery in a precision talking watch, first, locate the small notch on the back cover and gently pry it open with a small tool or coin. Remove the old battery, noting its orientation, and insert a new battery of the same type. After replacing the cover, to set the time, press the designated button (often found on the side) to hear the current time, then follow the voice prompts to adjust the hours and minutes as needed. Finally, confirm the settings to ensure the watch is correctly set.