The iFLYTEK Sound Imager is a handheld detection device that can quickly locate partial discharge points in China. It solves the problems inherent in the traditional single-point inspection process: low inspection quality, scarcity of inspection personnel, and dangerous inspection environments in the electric power field. The iFLYTEK is designed to allow inspectors to carry out inspections safely, efficiently, accurately, and conveniently, making power companies more efficient in inspection scenarios and providing advanced technology guarantees for the safe operation of power-grid equipment.