It is nice and compact. It can be used to detect a momentary sound, like an shot or a "oh!" voice. Normally the output is at 0,4V and it gives a pick of positive voltage when a sound above a specific level is produced. Supply 5volts dc. Good for automation.
Not tested yet. Just not the "usual order" for pins. It is Gnd / Out / Vcc instead of Gnd / Vcc / Out.
ok
Todo ok
Now my Arduino can be triggered by sound. Just what I needed.
El envío fue muy rápido y el producto es como se anunciaba.
Good quality. I recommend.