The third is practical style.There are various types of hearing aids, including box type and earphone type, which are more affordable; there are also beautiful in-ear types, which are the size of peanuts and are placed in the ear canal; there are also ear cavity types customized according to the size of the ear cavity; and half a cigarette The size of the back of the ear is worn on the back of the ear.The ear-cavity and behind-the-ear hearing aids are small and not obvious at first glance, so the price is higher.
