Please read this first. " @The speaker is not inclued because it is not allowed to ship by airplane "

Once the switch is pressed and immediately release the circuit will start to working and the sound will emit from the loundspeaker

 Technical information

- Requires power supply 3VDC, ( Battery holder and battery don't come in the package )

- Current consumption 60mA ( Max )

- PCB board 0.99" x 1.06"