| 摘要 |
A keyboard includes a speaker, a clock module, a sound storage module, and a processor. The clock module is configured for outputting a clock signal. The sound storage module is configured for storing an alarm file. The processor is connected to a power terminal of the keyboard, the clock module, the sound storage module, and the at least one speaker. The processor receives voltage from the power terminal of the keyboard and the clock signal from the clock module and reads the alarm file from the sound storage module at every internal of a predetermined time period according to the clock signal, and processes the alarm file to be outputted via the speaker.
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