It is always recommends to get hearing assessment (pure tone Audiometry) before deciding about the treatment options. If hearing aids is the only option then buying them online is not advisable as it has to be programmed with the patient and limited service are given after sale for online products. It's more tht just the brands, one should try with different brands and see which suits him after that they can decide which device to go with. Hope this helps Regards Vijay Kumar