Hearing aid for the elderly deaf
1. Two charging methods. 2. Color: blue. 3. Earplug 3sizes
Introduction: This product is a rechargeable hearing aids suitable for hearing impaired. The principle is to amplify the sound. If you are reducing a certain type of noise, you need to have an audiological test. You need to adjust the hearing aid channel according to your hearing.
Warm advice: All hearing aids will make a hissing sound if there is air or a space between the hearing aid and the ear canal. About, you can do these 4 steps to remove it. 1. Adjust the volume to minimum before wearing it. 2. Choose a slightly larger size earplugs to avoid whistling. 3. Gradually increase the volume to avoid sudden increase in sound. 4. Use a tiny bit of lubricant at the opening of