Summary:

One post I thought, weird.  Two posts, strange.  Now after seeing this thing on no less than half a dozen posts I too must contribute to the madness and mention the Sonic Grenade.  It’s only $18US and is capable of emitting three different ear shredding pitches […]

One post I thought, weird.  Two posts, strange.  Now after seeing this thing on no less than half a dozen posts I too must contribute to the madness and mention the Sonic Grenade.  It’s only $18US and is capable of emitting three different ear shredding pitches but what I find most unique is the only way to shut the thing off is to reinsert the pin.

Sonic grenade

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