Where do you sell hearing aids in Xi'an? What brand is good?

There is a hearing aid supermarket across from the Jiao Tong University Hospital. I've given my family members hearing aids there, and the results are good, and the service attitude is also good! I remember the brand I bought last time seemed to be called Rasonic, after careful comparison before making a decision. The price/performance ratio of this brand is quite high. By the way, I still have their phone number here, see if it helps you. 029-85272225