Xiaohua allegedly showed no signs of wanting to speak when he was one year old and was found to be congenitally deaf when he went to the hospital. His parents saved their money and brought their son to a high-end hearing aid seller’s store a year later and spent 30,000 yuan on a top-of-the-line, fully digital hearing aid. After the salesman adjusted the parameters of the hearing aid for Xiaohua, he said he could wear it. But for more than two years, despite careful tuning, Xiaohua’s parents found that their son could not express himself except for a few simple words. Yesterday, Xiaohua’s mother took him to the hospital’s ear, nose and throat department for a checkup. When the experts used the computer to test the parameters of Xiaohua’s hearing aids, they were surprised to find that there was a big problem with the commissioning of the hearing aids, as all the sounds were amplified to an inappropriate volume, resulting in a cacophony of sounds from which the child’s speech was difficult to distinguish. Don’t think that just wearing a hearing aid will solve all your problems. He also reminds parents that the best time for children to learn language is between the ages of 2 and 5, and that missing it will cause lifelong regrets for the child. Note: When parents get a hearing aid for their baby, they must pay attention to whether the hearing aid is effective or not, and furthermore, whether it has achieved the best results, whether it is a satisfaction score of 90 or more, 70 or even only 60. In many cases, the effect is 70-80 points and the parents feel satisfied with themselves, which is actually a misconception, because, why should they be satisfied with 70 points instead of 90 points?