Do you have problems waking up your children's, husband, roommate ? If the answer is YES , I can tell you that those days are over, because The Sonic Grenade guarantee you that the lazy person will be up immediately.Now maybe you are asking how this mighty grenade works.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.

There is a 20 second delay before it emits an ear piercing siren. The only way it can be switched off is squeezing the handle and inserting the pin. Before you know it they will be out of bed with the grenade in their hand to find you, 'the pin holder'! I can say that this is better than anything.You can see it live in action here.