Ultrasonic Waves

Ultrasonic Waves (超音波) is a Common Skill and one of the Intrinsic Skills of Giant Bats.

Abilities
Ultrasonic Waves allows the user to emit ultrasonic sound waves. Its original use is echolocation but it can be used to confuse targets and even knocking them unconscious.

Trivia

 * After getting used to the Skill, Rimuru was able to use it as his voice.