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Micro Sonic Grenade

Punish those lugholes!

Micro Sonic Grenade

Punish those lugholes!

Sorry, this product is not available.



select the time your grenade will go off!

Choose a 5, 30 or 60 second delay

They say people are born with just two inherent fears: falling and loud noises. And while there’s nothing funny about shoving work colleagues down the stairs *they said sniggering like loons* there’s plenty of harmless amusement to be had by scaring them witless with a godawful racket. Enter, with a quite deafening din, the Micro Sonic Grenade.

it's really loud, annoy your coworkers

110-115 decibels is too loud for Rik!

Teensy but wincingly noisy, this comedy ‘grenade’ emits a truly ear-splitting 110-115 decibel wail. That’s the same as a power saw. Aargh! Simply set the timer to 5, 30 or 60 seconds, hide it near your victim and scarper. Failing that pop in some earplugs so you can point and laugh at your prey as they scrabble around looking for the source of their misery. You can even chuck it, grenade styley. ‘Fire in the hole!’

Yes, we suppose you could choose to ignore all this daft tomfoolery and actually do some work, but watching the boss jumping out of his skin whilst pulling a face like a Raiders of the Lost Ark melting head is worth getting fired for. Isn’t it?

more info

Please Note:
  • WARNING: Avoid prolonged exposure to alarm siren
  • Suitable for ages 14+
  • Siren is 110-115 decibels, about the loudness of a sandblaster or power saw
  • Batteries included, but safety tab must be removed before first use
Product Features:
  • Great office prank
  • You can adjust the timer to 5, 30 or 60 seconds delay
  • Hide or throw the grenade near your target
  • Run away (but not so far away that you can't enjoy their suffering)
  • Measures approximately 7.6cm(H) x 3.7cm(W) x 1cm(D)

Customer Reviews

I wasn't disappointed with this product but I did expect it to be louder. However, slipped in an unsuspecting victim's pocket and I'm sure they jump out of there skin.
Calum - 1st August 2012
How long does the noise last?
Ro - 8th December 2011
Firebox says: It has to be turned off manually. There are special instructions with the product, but we don't want to give them away here, or the destructive potential of this would be massively reduced!
I bought this and the first one to me this one is much better the other one just beeps but this one screams also this one is tiny so you can have some under the bed action!
Ben Thomases - 25th September 2011
Comparing the two this one is better by a lot, the other one was rather large, this one you can put under peoples bed as an annoying prank when they try to get to sleep.
Rhys - 11th May 2011
What batteries does it use?
Raphaël - 1st April 2011
Firebox says: The batteries come included, but are CR1225 batteries (small round ones).
I bought the first Sonic Grenade and it was pretty cool and kinda loud so what is this like in comparison to it.
Niall Mc Shane - 15th March 2011
Firebox says: Mike from Great Yarmouth thinks it's a winner. Has anybody out there tried them both? Help, we want an impartial opinion.