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Descriptions:
dimensions: length32mm Xwidth17mm Xhigh15mm
the main chip:LM393Electret microphone
the working voltage: DC4-6V
features:
Having a signal output indicative.
Single output signal.
The output signal is low active.
When the sound output low, bright lights.
Voice-activated lights can be used, with the photosensor make a sound and light alarm, and a sound control, sound detection oc ns.
he output switch circuit board!
$399.99
$ 99 .00 $99.00