Buzzer/Speaker/Alarm

Buzzers, sounders and sirens are a class of electronic components that produce specific sounds. they are widely used in alarm, reminder, alarm and other occasions. buzzers are mainly used for simple prompts, such as timers, electronic clocks, etc.; sounders are usually used for music playback, voice prompts, etc.; and sirens are used for more serious alarm occasions, such as fires, earthquakes, etc. what they have in common is that they can attract people's attention with high-brightness, high-f

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