Gadgets posted by

Sonic alarm.


Not sure what message this Sonic Alarm wake up gidget is sending to our young folk, but it’s sure an interesting way to get them out of bed in the morning. Just pull the pin, lob it into the room and retreat to the cornflakes. We suggest you budget for additional units to replace the ones that go missing out of their suddenly open windows. £9.99.

 Simply pull the pin, yell an emphatic “fire in the hole” and lob the grenade into the sleeper’s room. After ten seconds a very annoying and piercingly loud noise (there are three volume settings) will blast out from the alarm. That’s not all however, what makes this especially great is that to stop the alarm the sleeper has to find you so you can put the pin back in.

Red – who has written posts on The Red Ferret Journal.


  • Great, as long as you’re okay with it being a single-use item, since any person thusly awakened would be wholly justified in smashing the cursed thing into tiny, tiny bits.

  • What a riot! I built one of these about 17 years ago as a joke. My sonic grenade has a 1/8 phono jack ‘pin’ with a green LED in the end that would light up when the main switch was switched. The main switch was covered with one of those cool aircraft switch covers. When the pin was pulled five LEDs would count down and then blast the area with a mind numbing 120dB sonic blast of pain. Everyone loved it. If only I had know that people would buy stuff like this.

  • Sheer brilliance :)

    You may need a lockpicker to get into their room first….. nah, stuff that….. use some plastic explosives on the lock instead, then bung the grenade in :) aaah, just like Vietnam….. (sigh).

  • Personally I’d consider sending in a Special Forces stealth team first, just to clear the room of underwear and other anti-personnel material…

  • I blogged about this yesterday and as noted, I started to search for the product on-line to purchase.

    Per my comment on my own blog entry, the device isn’t as good as advertised. I heard it and it’s basically a watch alarm sound – nothing serious and definitely not gag-worthy. Great idea and great description on the sites, but not what it needs to be.

  • I hope that people adjust the volume on this thing. That temporary ringing in your ears — or even “club ear”, means permanent ear damage has occurred.

    I hate to be a party pooper, but this thing really doesn’t sound safe for the ears.

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