Electronic Clock Thermometer Backlight Digital Clock Thermometer For Car For

With backlight button, press it to light for about 5 seconds, even in dark places can be seen clearly. Clock Settings Press the A key for three seconds to enter the setting of the hour, press the B key to adjust the value, and then press the A key to set the minute (the minute is adjusted to 0 when the second is fast), and then press the A key to confirm and exit;.

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