||5v active buzzer, 3.5-5.5v in, a very audible 2.3khz tone out. "Active" refers to that the circuitry for the signal is integral, you need only feed it DC voltage and it'll do the rest.
Fantastic for any device or skill game requiring a highly audible alarm. The tone is quite high, and can be muted by the careful application of tape to the hole on top. See alternate pictures for technical details.
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