*For ages 14+. Not suitable for children due to small parts and loud sound. *Office prank grenade to blast your coworkers' eardrums *Set the timer to 5, 30, or 60 seconds *Hide or throw the grenade near your target *Run away (but not so far away that you can't enjoy their suffering) *Siren is 110-115 decibels, about the loudness of a sandblaster or power saw *Batteries Included *WARNING: Avoid prolonged exposure to alarm siren.