The need of fire extinguishing techniques is vital as fire accidents are catastrophic in nature, leads to unrecoverable loss. The fire extinguishing techniques used nowadays are having various drawbacks. The need for new fire extinguishing techniques is very important as fire accidents cause damages. The goal of this project is to use acoustic sound waves to extinguish and/or suppress a flame. Traditional fire extinguishers, such as chemical foam or water, are used successfully but pose the threat of severely damaging indoor equipment, whereas an acoustic wave fire extinguisher would protect them from further damage caused by the fire. The paper aims to develop the portable fire extinguisher, study and analyse the effect of different frequency of sound wave on flames. Experiments are conducted to study suitable sound wave frequency range to extinguish flame and to analyse the acoustic-flame interaction through observations from the experiments. This paper utilizes the scientific principle of physics and the engineering aspects of mechanics and electronics to successfully suppress a flame. Based on the physical aspects of acoustic waves, it is important to understand that acoustic wave patterns are referred to as longitudinal pressure waves—meaning that the waves move in a back-and-forth vibrating motion in which they are able to agitate air molecules away from the fuel of the flame which leads to flame extinction.