The grenades are designed to emit a wide range of sound frequencies to render any Link, man, or beast unconscious or temporarily stunned. The small size is extremely deceiving with the internal CPU only taking up one fourth the size of the grenade itself. It is the miracle of modern computer engineering. The full size was determined by the speaker that the sound emits from for the most substantial target area for disabling said target. If you want it in jail, use the sound of a chalkboard scratched by nails!