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Ultrashoot / Infrasonic wave


the Infrasound weapon is a weapon that can emit below 20 Hz, which can cause the human body to resonate and damage the organ or the resonance part and even can't hear. The Infrasound are strong concealment, fast propagation speed, long transmission distance, strong penetrating power, no pollution to the environment, and no damage to the facilities.

We combine infrasound with an umbrella, an umbrella is essential gentleman decorations, Therefore, we design a non-lethal weapon that is stylish and easy to disguise. The opening and closing angles of the umbrella as well as the curvature can be used to control the sound reflection distance.


Da-Yeh University

Da-Yeh University
Changhua, Taiwan

Tzu-I Chang,
DA-YEH university

Kuan-Ju Yu,
DA-YEH university

Tai-Wei Peng,
DA-YEH university