How hearing aids allow deaf people to hear sound-

Hearing aids convert sound energy into electrical signals, which are amplified, then converted into sound energy and transmitted into the human ear. The hearing aid input transducer consists of a microphone (microphone or microphone), a magnetic induction coil and other parts, whose role is to convert the input acoustic energy into electrical energy transmitted to the amplifier. The amplifier amplifies the input electrical signal and then transmits it to the output transducer. The output transducer consists of a headset or a bone-conducting vibrator, and its function is to convert the amplified signal from electrical energy to acoustic or kinetic energy. Power supply is an indispensable part to supply the working energy of hearing aids. (hereinafter referred to as: Congmao Hearing) since its establishment in 2004, the full introduction of Switzerland Phonak, Denmark Oticon and Rishengda, Germany Siemens, the United States, Stantec's latest hearing aid technology and advanced hearing diagnostic equipment from Denmark, Germany, the purchase of hearing aids should follow the correct process. First of all, you should have a hearing test (including pure tone audiometry, speech recognition rate test, etc.), and then according to the degree of hearing loss, speech discrimination ability, the condition of the ear canal and other signs of the disease, we recommend a few models of hearing aids for you to meet your needs for a trial, and try the effect of the trial one by one to evaluate, and ultimately selected the most suitable product for you.