One Button Activated MP3 Voice Announcer Siren Alarm (Red Button) (looping)
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Skill Level : Assembled and Tested

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Button-Triggered Sound File Upload All-in-One Kit Built-in Amplifier


Built-in a high quality MP3 player with great sound quality. 

Built-in 4MB flash memory as the storage device. 

Easy to take off the lid and put it back. 

Easy to update sound file on computer through USB connection. 

A push button is connected to the speaker. 

It will play a sound after pressing the push button. 

With the self reset button (green), it also supports multiple sound files other than one sound file only. -When there're multiple sound files, it will always play the next sound file after momentarily pressing the button. 

With the self-locking button (red), the sound file is always played in a loop until the button is pressed again and released. 

Equipped with a high quality class D amplifier. 

Adjustable sound volume through turning the blue potentiometer on the internal circuit board. 

Wide power input and stable performance. 

Length of the power wires: about 30cm

Length of the button wires: about 20cm


  • Working voltage: 6V to 30V DC
  • Working current: ≤1000mA
  • Power consumption: ≤3W
  • Flash memory size: 4MB
  • Audio format: MP3
  • Sound pressure level: ≤100dB

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