There are several ways to wake a heavy sleeper. Screaming 'Get up you lazy... er... person' is one method, but it's invariably met by a mumbled response involving the word 'off'.
Cranking up the stereo to 11 is another technique, but we find the professional dozer always manages to remain blissfully oblivious to the din until the rest of the house is forced to concede defeat. Marching into the bedroom clashing cymbals and walloping a bass drum works, but unless you're on first name terms with the local one-man band, it's not really practical.
So how do you rouse annoying layabouts without buying half a ton of bulky percussion? Easy, you purchase a Sonic Grenade! Simply pull the pin on this amusingly heartless device, lob it into the sleeper's room, yell 'fire in the hole!' and run for cover. Within twenty seconds a piercingly loud, spectacularly annoying noise will blast from this comedy grenade's innards, causing the sleeper to wake up faster than you can say 'I love it when a plan comes together'.
Choose your weapon
Pull the pin
What makes the Sonic Grenade particularly effective (and hilarious) is the fact it can only be deactivated by replacing the pin, so victims have to get up and find you (and the pin) in order to silence its dreadful caterwauling. If you're feeling generous you can always chuck in the pin along with the grenade - although the sleeper will still have to scrabble around on the floor looking for it. Brilliant!
Featuring three volume levels the Sonic Grenade looks just like an archetypal Hollywood grenade, so you can make like your favourite movie star every time you roll/lob/drop it into the bedroom. In fact, it's so hilariously irritating we've started using ours just to annoy people. Perfect for slothful schoolkids, lazybones partners and layabout flatmates, the Sonic Grenade is guaranteed to stir all but the bravest of sleepers. Indeed, if this deafening little baby doesn't wake 'em up, nothing will. We said IF THIS DEAFENING LITTLE...Oh, forget it. GRENADE!!
Approximately 6cm(W) x 13cm(H) x 8cm(D)
Product can temporarily quieted by holding the trigger arm
Bought this as a gift for our friend as her hubby sleeps through anything (slapping him and cold water does nothing when hes out!) Although it is not as loud as we would hope (we wanted ear splitting cant hear myself talk to get him back for all the snoring!) its annoying enough and loud enough to arise him from slumber. A brilliant toy to prank people with. Pull the pin, hide somewhere and run! Vikki, Stockport - 13th August 2010
This + magic iq box = mwahahahaa! Jack, Ewell - 21st June 2010
Firebox, down at the bottom of the reviews you said you have to put the pin back in to stop it, you are wrong! If you temporarily hold down the handle it does stop beeping! Edward, Chester - 9th April 2010
Sorry, I'm just curious. What are the decibel ratings? Peter, USA - 13th March 2010
Firebox says: 101.1dB is the maximum rating for the Sonic Grenade
Bought this for my son and he loves it.... Quite loud and very effective when you aren't expecting it lol. Skatermiss, Hampshire - 15th December 2009
I dont actually have this product but I just wanted to say 1 thing: to everyone that complains it needs to be louder you are ridiculous and obviously havent thought your complaint through thoughrly. This is a toy, not a weapon, its meant for kids teenagers and adults who want to have some fun and a bit of a laugh, there is NO WAY that firebox would release a product that may perminantly damage the hearing of people, so that why its only loud enogh to annoy people, I mean come on, firebox dont exactly want to get sued, do they? Joel, Shenley, Hertforshire - 23rd October 2009