In addition to the general knowledge of hearing loss and ear disease prevention, detection, recovery and treatment, the selection of appropriate hearing aids is also relevant to the hearing quality of the elderly. Nowadays, wearing hearing aids due to hearing impairment has become a common household thing. But the State Administration of Quality Supervision, Inspection and Quarantine recently released the hearing aid supervision and sampling results, the pass rate of 85.7%. This shows that not all hearing aids in circulation are qualified products. So a few tips for you. 1.Consider your age, the cause of deafness, the environment and your economic situation, and choose a hearing aid that suits your condition. 2.Have proper expectations of hearing aids, especially when you first start wearing them, and be patient and determined, because hearing aids, no matter how good their performance is, cannot replace your own ears, and you need to get familiar with them slowly and understand them to master them. 3, optional hearing aids to adhere to the quality-oriented principle, to a reputable professional institutions or regular dealers, and match before to learn more about the product information, read some information about hearing aids, master the basic technical indicators. 4.For the product itself, check whether the product has a complete Chinese logo, check the quality of the product appearance, processing technology, and whether the battery contactor is normal; pay attention to whether the various accessories, manuals, warranty cards, etc. are complete. 5, to confirm the after-sales service of the product, including warranty, warranty exchange service and repair and debugging after wearing, etc. When buying the product, you should pay attention to the content of the service that the businessman can provide and the commitment to the customer, and remember to ask for an invoice or receipt. Finally, just like we have to adapt to glasses and denture, there is also an adaptation process for hearing aids. After a period of time, you should practice listening to your own speech, and then gradually move on to listening to the sound of several people talking together, and listening to the sound of the radio and TV. If you do not have this adaptation process, you will lose trust and confidence in your hearing aid when you go to a noisy environment at the beginning, where a lot of complicated sounds are amplified and enter your ears.