Sonic detonator

The Sonic Detonator is a grenade used to inflict small amounts of damage as well as stun a foe or group of foes. When activated it releases a burst of sound generated by a speaker set to an ear-piercing frequency. The sound lasts only a second or two but the effect on a human can be devastating, especially at a close range. Shattering a foe's eardrum could prove dibilitating or fatal, and the sheer shock from having a concussive wave of sound thrown at you is enough to stun even the unflinching-est heroes.

The Detonator is used by mercenaries and security guards to stun foes before closing in with a restraining or lethal device. Soldiers tend to stick to more lethal grenades, valuing kill over capture in the field of battle.