Hearing aids for the elderly generally cost around$1000-1500. Before wearing hearing aids, elderly people need to have an electrical audiometric examination, and if they are diagnosed with senile sensorineural deafness, they can choose hearing aids to improve their hearing. Hearing aids are more effective when the average hearing threshold of both ears is above 75 decibels. Hearing aids for the elderly are usually divided into in-the-ear and out-of-the-ear types, with the out-of-the-ear type being relatively inexpensive and the in-the-ear type being relatively more expensive, but the in-the-ear type is more effective. Before wearing in-ear hearing aids, you need to ask your otolaryngologist to clean the outer ear canal to keep it clean, otherwise it will affect the effectiveness of the hearing aid. Out-of-the-ear hearing aids are relatively less expensive, but they are noisier and can cause local discomfort after wearing them.