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9. Letter Buttons
Press the Letter Buttons to learn about letters or to answer letter-
related questions.
10. Number Buttons
Press the Number Buttons to learn numbers or to answer number-
related questions.
11. Automatic Shut-Off
To preserve battery life, the unit will automatically turn off after one
minute without input. The unit can be turned on again by pressing the On/
Off Button. The unit will also automatically turn off when the batteries
are very low. A warning will be displayed on the screen as a reminder to
change the batteries.
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