AD104 Audiometer Product Introduction: Economical, cost-effective, and highly accurate. It can be used for hearing examination and diagnosis in hospitals, schools, industrial and mining enterprises, military units, driving schools, rehabilitation centers, and training institutions for deaf children. Designed in accordance with ergonomics. The operation process is extremely simple and intuitive. The sound output intensity, frequency, and test information are clearly displayed on the LCD screen. Communication with subjects can be achieved through the built-in microphone. Standard output interfaces: Air conduction (AC), bone conduction (BC), and sound field (SF). SF can be connected to a free area amplifier or inserted into headphones.