- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
English
Views: 3 Author: Site Editor Publish Time: 2022-11-21 Origin: Site
The eyes are the windows to the soul, and the ears are the windows to the world.
Of the 1.4 billion people in the country, deaf people account for about 26 million. As the name implies, deaf people are deaf and mute, but some of these 26 million people are not vocal cord problems, but deaf so mute that they do not know how to output sound because they cannot receive outside sounds.
In order to allow deaf people to communicate and express themselves, the emergence of sign language gave them a chance to communicate and understand the outside world. Slowly, sign language became popular, and there was always a sign language teacher in the bottom right corner of the news, who brought a different story to these people.
In 1896, Bell opened a whole new door for the deaf when he invented the world's first electronic hearing aid for the deaf. In 1890, Austrian scientist FerdinantAlt prepared the first generation of electron tube hearing aids, and in 1904, Danish HansDemant and American ResseHutchison invested in the mass production of hearing aids. By the 1940s, two types of hearing aids, air-conduction and bone-conduction, were already available, and in 1943, the development of integrated hearing aids, in which the power supply, microphone and amplifier were housed in a small box, was initiated as a prototype for modern box-type hearing aids. Nowadays, hearing aid technology has become very mature, and there are also hearing aids that look like headphones, and all of this is to allow this group of people to experience normal life as well. I think these are more the meaning of science.
The emergence of wireless charging hearing aids is also to make charging more convenient. Putting the hearing aid into the shell of the wireless charging hearing aid to start charging not only makes charging more convenient, but also gives the hearing aid a safety guarantee. Nowadays, hearing aids are still relatively expensive, and not every deaf person is using them. But I believe that one day, the development of technology and the wealth of the country will solve this problem and give all deaf people a normal life.
